31561413

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{223}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 48168960

約数和(自身を除く): 16607547

約数列:

[1, 3, 13, 19, 39, 57, 191, 223, 247, 573, 669, 741, 2483, 2899, 3629, 4237, 7449, 8697, 10887, 12711, 42593, 47177, 55081, 127779, 141531, 165243, 553709, 809267, 1661127, 2427801, 10520471, 31561413]

約数ペア:

[(1, 31561413), (3, 10520471), (13, 2427801), (19, 1661127), (39, 809267), (57, 553709), (191, 165243), (223, 141531), (247, 127779), (573, 55081), (669, 47177), (741, 42593), (2483, 12711), (2899, 10887), (3629, 8697), (4237, 7449)]