19961608

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{691}}^1$

素因数の和:877

約数の個数: 32

約数和(自身を含む): 39360960

約数和(自身を除く): 19399352

約数列:

[1, 2, 4, 8, 23, 46, 92, 157, 184, 314, 628, 691, 1256, 1382, 2764, 3611, 5528, 7222, 14444, 15893, 28888, 31786, 63572, 108487, 127144, 216974, 433948, 867896, 2495201, 4990402, 9980804, 19961608]

約数ペア:

[(1, 19961608), (2, 9980804), (4, 4990402), (8, 2495201), (23, 867896), (46, 433948), (92, 216974), (157, 127144), (184, 108487), (314, 63572), (628, 31786), (691, 28888), (1256, 15893), (1382, 14444), (2764, 7222), (3611, 5528)]