20673212

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{10399}}^1$

素因数の和:10481

約数の個数: 24

約数和(自身を含む): 41932800

約数和(自身を除く): 21259588

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 10399, 20798, 41596, 72793, 145586, 291172, 738329, 1476658, 2953316, 5168303, 10336606, 20673212]

約数ペア:

[(1, 20673212), (2, 10336606), (4, 5168303), (7, 2953316), (14, 1476658), (28, 738329), (71, 291172), (142, 145586), (284, 72793), (497, 41596), (994, 20798), (1988, 10399)]