21000478554

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{277}}^1\times {\mathrm{283}}^1$

素因数の和:634

約数の個数: 192

約数和(自身を含む): 52923104640

約数和(自身を除く): 31922626086

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 41, 54, 66, 82, 99, 121, 123, 198, 242, 246, 277, 283, 297, 363, 369, 451, 554, 566, 594, 726, 738, 831, 849, 902, 1089, 1107, 1353, 1662, 1698, 2178, 2214, 2493, 2547, 2706, 3047, 3113, 3267, 4059, 4961, 4986, 5094, 6094, 6226, 6534, 7479, 7641, 8118, 9141, 9339, 9922, 11357, 11603, 12177, 14883, 14958, 15282, 18282, 18678, 22714, 23206, 24354, 27423, 28017, 29766, 33517, 34071, 34243, 34809, 44649, 54846, 56034, 67034, 68142, 68486, 69618, 78391, 82269, 84051, 89298, 100551, 102213, 102729, 104427, 124927, 127633, 133947, 156782, 164538, 168102, 201102, 204426, 205458, 208854, 235173, 249854, 255266, 267894, 301653, 306639, 308187, 313281, 374781, 382899, 470346, 603306, 613278, 616374, 626562, 705519, 749562, 765798, 862301, 904959, 924561, 1124343, 1148697, 1374197, 1403963, 1411038, 1724602, 1809918, 1849122, 2116557, 2248686, 2297394, 2586903, 2748394, 2807926, 3214031, 3373029, 3446091, 4122591, 4211889, 4233114, 5173806, 6428062, 6746058, 6892182, 7760709, 8245182, 8423778, 9485311, 9642093, 12367773, 12635667, 15521418, 18970622, 19284186, 23282127, 24735546, 25271334, 28455933, 28926279, 35354341, 37103319, 37907001, 46564254, 56911866, 57852558, 70708682, 74206638, 75814002, 85367799, 86778837, 106063023, 170735598, 173557674, 212126046, 256103397, 318189069, 388897751, 512206794, 636378138, 777795502, 954567207, 1166693253, 1909134414, 2333386506, 3500079759, 7000159518, 10500239277, 21000478554]

約数ペア:

[(1, 21000478554), (2, 10500239277), (3, 7000159518), (6, 3500079759), (9, 2333386506), (11, 1909134414), (18, 1166693253), (22, 954567207), (27, 777795502), (33, 636378138), (41, 512206794), (54, 388897751), (66, 318189069), (82, 256103397), (99, 212126046), (121, 173557674), (123, 170735598), (198, 106063023), (242, 86778837), (246, 85367799), (277, 75814002), (283, 74206638), (297, 70708682), (363, 57852558), (369, 56911866), (451, 46564254), (554, 37907001), (566, 37103319), (594, 35354341), (726, 28926279), (738, 28455933), (831, 25271334), (849, 24735546), (902, 23282127), (1089, 19284186), (1107, 18970622), (1353, 15521418), (1662, 12635667), (1698, 12367773), (2178, 9642093), (2214, 9485311), (2493, 8423778), (2547, 8245182), (2706, 7760709), (3047, 6892182), (3113, 6746058), (3267, 6428062), (4059, 5173806), (4961, 4233114), (4986, 4211889), (5094, 4122591), (6094, 3446091), (6226, 3373029), (6534, 3214031), (7479, 2807926), (7641, 2748394), (8118, 2586903), (9141, 2297394), (9339, 2248686), (9922, 2116557), (11357, 1849122), (11603, 1809918), (12177, 1724602), (14883, 1411038), (14958, 1403963), (15282, 1374197), (18282, 1148697), (18678, 1124343), (22714, 924561), (23206, 904959), (24354, 862301), (27423, 765798), (28017, 749562), (29766, 705519), (33517, 626562), (34071, 616374), (34243, 613278), (34809, 603306), (44649, 470346), (54846, 382899), (56034, 374781), (67034, 313281), (68142, 308187), (68486, 306639), (69618, 301653), (78391, 267894), (82269, 255266), (84051, 249854), (89298, 235173), (100551, 208854), (102213, 205458), (102729, 204426), (104427, 201102), (124927, 168102), (127633, 164538), (133947, 156782)]