19996872

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{3217}}^1$

素因数の和:3270

約数の個数: 64

約数和(自身を含む): 58696320

約数和(自身を除く): 38699448

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 37, 42, 56, 74, 84, 111, 148, 168, 222, 259, 296, 444, 518, 777, 888, 1036, 1554, 2072, 3108, 3217, 6216, 6434, 9651, 12868, 19302, 22519, 25736, 38604, 45038, 67557, 77208, 90076, 119029, 135114, 180152, 238058, 270228, 357087, 476116, 540456, 714174, 833203, 952232, 1428348, 1666406, 2499609, 2856696, 3332812, 4999218, 6665624, 9998436, 19996872]

約数ペア:

[(1, 19996872), (2, 9998436), (3, 6665624), (4, 4999218), (6, 3332812), (7, 2856696), (8, 2499609), (12, 1666406), (14, 1428348), (21, 952232), (24, 833203), (28, 714174), (37, 540456), (42, 476116), (56, 357087), (74, 270228), (84, 238058), (111, 180152), (148, 135114), (168, 119029), (222, 90076), (259, 77208), (296, 67557), (444, 45038), (518, 38604), (777, 25736), (888, 22519), (1036, 19302), (1554, 12868), (2072, 9651), (3108, 6434), (3217, 6216)]