217906884

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{449}}^1$

素因数の和:550

約数の個数: 144

約数和(自身を含む): 639802800

約数和(自身を除く): 421895916

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 34, 36, 39, 51, 52, 61, 68, 78, 102, 117, 122, 153, 156, 183, 204, 221, 234, 244, 306, 366, 442, 449, 468, 549, 612, 663, 732, 793, 884, 898, 1037, 1098, 1326, 1347, 1586, 1796, 1989, 2074, 2196, 2379, 2652, 2694, 3111, 3172, 3978, 4041, 4148, 4758, 5388, 5837, 6222, 7137, 7633, 7956, 8082, 9333, 9516, 11674, 12444, 13481, 14274, 15266, 16164, 17511, 18666, 22899, 23348, 26962, 27389, 28548, 30532, 35022, 37332, 40443, 45798, 52533, 53924, 54778, 68697, 70044, 80886, 82167, 91596, 99229, 105066, 109556, 121329, 137394, 161772, 164334, 198458, 210132, 242658, 246501, 274788, 297687, 328668, 356057, 396916, 465613, 485316, 493002, 595374, 712114, 893061, 931226, 986004, 1068171, 1190748, 1396839, 1424228, 1786122, 1862452, 2136342, 2793678, 3204513, 3572244, 4190517, 4272684, 5587356, 6052969, 6409026, 8381034, 12105938, 12818052, 16762068, 18158907, 24211876, 36317814, 54476721, 72635628, 108953442, 217906884]

約数ペア:

[(1, 217906884), (2, 108953442), (3, 72635628), (4, 54476721), (6, 36317814), (9, 24211876), (12, 18158907), (13, 16762068), (17, 12818052), (18, 12105938), (26, 8381034), (34, 6409026), (36, 6052969), (39, 5587356), (51, 4272684), (52, 4190517), (61, 3572244), (68, 3204513), (78, 2793678), (102, 2136342), (117, 1862452), (122, 1786122), (153, 1424228), (156, 1396839), (183, 1190748), (204, 1068171), (221, 986004), (234, 931226), (244, 893061), (306, 712114), (366, 595374), (442, 493002), (449, 485316), (468, 465613), (549, 396916), (612, 356057), (663, 328668), (732, 297687), (793, 274788), (884, 246501), (898, 242658), (1037, 210132), (1098, 198458), (1326, 164334), (1347, 161772), (1586, 137394), (1796, 121329), (1989, 109556), (2074, 105066), (2196, 99229), (2379, 91596), (2652, 82167), (2694, 80886), (3111, 70044), (3172, 68697), (3978, 54778), (4041, 53924), (4148, 52533), (4758, 45798), (5388, 40443), (5837, 37332), (6222, 35022), (7137, 30532), (7633, 28548), (7956, 27389), (8082, 26962), (9333, 23348), (9516, 22899), (11674, 18666), (12444, 17511), (13481, 16164), (14274, 15266)]