20841808

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1033}}^1$

素因数の和:1151

約数の個数: 40

約数和(自身を含む): 43978088

約数和(自身を除く): 23136280

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 97, 104, 194, 208, 388, 776, 1033, 1261, 1552, 2066, 2522, 4132, 5044, 8264, 10088, 13429, 16528, 20176, 26858, 53716, 100201, 107432, 200402, 214864, 400804, 801608, 1302613, 1603216, 2605226, 5210452, 10420904, 20841808]

約数ペア:

[(1, 20841808), (2, 10420904), (4, 5210452), (8, 2605226), (13, 1603216), (16, 1302613), (26, 801608), (52, 400804), (97, 214864), (104, 200402), (194, 107432), (208, 100201), (388, 53716), (776, 26858), (1033, 20176), (1261, 16528), (1552, 13429), (2066, 10088), (2522, 8264), (4132, 5044)]