20649304

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{941}}^1$

素因数の和:1171

約数の個数: 32

約数和(自身を含む): 41937840

約数和(自身を除く): 21288536

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 211, 422, 844, 941, 1688, 1882, 2743, 3764, 5486, 7528, 10972, 12233, 21944, 24466, 48932, 97864, 198551, 397102, 794204, 1588408, 2581163, 5162326, 10324652, 20649304]

約数ペア:

[(1, 20649304), (2, 10324652), (4, 5162326), (8, 2581163), (13, 1588408), (26, 794204), (52, 397102), (104, 198551), (211, 97864), (422, 48932), (844, 24466), (941, 21944), (1688, 12233), (1882, 10972), (2743, 7528), (3764, 5486)]