19928896

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1409}}^1$

素因数の和:1451

約数の個数: 56

約数和(自身を含む): 45125640

約数和(自身を除く): 25196744

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 104, 136, 208, 221, 272, 416, 442, 544, 832, 884, 1088, 1409, 1768, 2818, 3536, 5636, 7072, 11272, 14144, 18317, 22544, 23953, 36634, 45088, 47906, 73268, 90176, 95812, 146536, 191624, 293072, 311389, 383248, 586144, 622778, 766496, 1172288, 1245556, 1532992, 2491112, 4982224, 9964448, 19928896]

約数ペア:

[(1, 19928896), (2, 9964448), (4, 4982224), (8, 2491112), (13, 1532992), (16, 1245556), (17, 1172288), (26, 766496), (32, 622778), (34, 586144), (52, 383248), (64, 311389), (68, 293072), (104, 191624), (136, 146536), (208, 95812), (221, 90176), (272, 73268), (416, 47906), (442, 45088), (544, 36634), (832, 23953), (884, 22544), (1088, 18317), (1409, 14144), (1768, 11272), (2818, 7072), (3536, 5636)]