20326984

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{191}}^1\times {\mathrm{251}}^1$

素因数の和:501

約数の個数: 32

約数和(自身を含む): 39191040

約数和(自身を除く): 18864056

約数列:

[1, 2, 4, 8, 53, 106, 191, 212, 251, 382, 424, 502, 764, 1004, 1528, 2008, 10123, 13303, 20246, 26606, 40492, 47941, 53212, 80984, 95882, 106424, 191764, 383528, 2540873, 5081746, 10163492, 20326984]

約数ペア:

[(1, 20326984), (2, 10163492), (4, 5081746), (8, 2540873), (53, 383528), (106, 191764), (191, 106424), (212, 95882), (251, 80984), (382, 53212), (424, 47941), (502, 40492), (764, 26606), (1004, 20246), (1528, 13303), (2008, 10123)]