18721736

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{2693}}^1$

素因数の和:2789

約数の個数: 32

約数和(自身を含む): 38793600

約数和(自身を除く): 20071864

約数列:

[1, 2, 4, 8, 11, 22, 44, 79, 88, 158, 316, 632, 869, 1738, 2693, 3476, 5386, 6952, 10772, 21544, 29623, 59246, 118492, 212747, 236984, 425494, 850988, 1701976, 2340217, 4680434, 9360868, 18721736]

約数ペア:

[(1, 18721736), (2, 9360868), (4, 4680434), (8, 2340217), (11, 1701976), (22, 850988), (44, 425494), (79, 236984), (88, 212747), (158, 118492), (316, 59246), (632, 29623), (869, 21544), (1738, 10772), (2693, 6952), (3476, 5386)]