21409542

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1$

素因数の和:319

約数の個数: 128

約数和(自身を含む): 62668800

約数和(自身を除く): 41259258

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 19, 21, 22, 27, 33, 38, 42, 54, 57, 63, 66, 77, 99, 114, 126, 133, 154, 171, 189, 198, 209, 231, 266, 271, 297, 342, 378, 399, 418, 462, 513, 542, 594, 627, 693, 798, 813, 1026, 1197, 1254, 1386, 1463, 1626, 1881, 1897, 2079, 2394, 2439, 2926, 2981, 3591, 3762, 3794, 4158, 4389, 4878, 5149, 5643, 5691, 5962, 7182, 7317, 8778, 8943, 10298, 11286, 11382, 13167, 14634, 15447, 17073, 17886, 20867, 26334, 26829, 30894, 34146, 36043, 39501, 41734, 46341, 51219, 53658, 56639, 62601, 72086, 79002, 80487, 92682, 102438, 108129, 113278, 125202, 139023, 160974, 169917, 187803, 216258, 278046, 324387, 339834, 375606, 396473, 509751, 563409, 648774, 792946, 973161, 1019502, 1126818, 1189419, 1529253, 1946322, 2378838, 3058506, 3568257, 7136514, 10704771, 21409542]

約数ペア:

[(1, 21409542), (2, 10704771), (3, 7136514), (6, 3568257), (7, 3058506), (9, 2378838), (11, 1946322), (14, 1529253), (18, 1189419), (19, 1126818), (21, 1019502), (22, 973161), (27, 792946), (33, 648774), (38, 563409), (42, 509751), (54, 396473), (57, 375606), (63, 339834), (66, 324387), (77, 278046), (99, 216258), (114, 187803), (126, 169917), (133, 160974), (154, 139023), (171, 125202), (189, 113278), (198, 108129), (209, 102438), (231, 92682), (266, 80487), (271, 79002), (297, 72086), (342, 62601), (378, 56639), (399, 53658), (418, 51219), (462, 46341), (513, 41734), (542, 39501), (594, 36043), (627, 34146), (693, 30894), (798, 26829), (813, 26334), (1026, 20867), (1197, 17886), (1254, 17073), (1386, 15447), (1463, 14634), (1626, 13167), (1881, 11382), (1897, 11286), (2079, 10298), (2394, 8943), (2439, 8778), (2926, 7317), (2981, 7182), (3591, 5962), (3762, 5691), (3794, 5643), (4158, 5149), (4389, 4878)]