19902064

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{13669}}^1$

素因数の和:13697

約数の個数: 40

約数和(自身を含む): 47462240

約数和(自身を除く): 27560176

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 13669, 27338, 54676, 95683, 109352, 177697, 191366, 218704, 355394, 382732, 710788, 765464, 1243879, 1421576, 1530928, 2487758, 2843152, 4975516, 9951032, 19902064]

約数ペア:

[(1, 19902064), (2, 9951032), (4, 4975516), (7, 2843152), (8, 2487758), (13, 1530928), (14, 1421576), (16, 1243879), (26, 765464), (28, 710788), (52, 382732), (56, 355394), (91, 218704), (104, 191366), (112, 177697), (182, 109352), (208, 95683), (364, 54676), (728, 27338), (1456, 13669)]