31271643

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{41}}^2\times {\mathrm{53}}^1$

素因数の和:157

約数の個数: 48

約数和(自身を含む): 52103520

約数和(自身を除く): 20831877

約数列:

[1, 3, 9, 13, 27, 39, 41, 53, 117, 123, 159, 351, 369, 477, 533, 689, 1107, 1431, 1599, 1681, 2067, 2173, 4797, 5043, 6201, 6519, 14391, 15129, 18603, 19557, 21853, 28249, 45387, 58671, 65559, 84747, 89093, 196677, 254241, 267279, 590031, 762723, 801837, 1158209, 2405511, 3474627, 10423881, 31271643]

約数ペア:

[(1, 31271643), (3, 10423881), (9, 3474627), (13, 2405511), (27, 1158209), (39, 801837), (41, 762723), (53, 590031), (117, 267279), (123, 254241), (159, 196677), (351, 89093), (369, 84747), (477, 65559), (533, 58671), (689, 45387), (1107, 28249), (1431, 21853), (1599, 19557), (1681, 18603), (2067, 15129), (2173, 14391), (4797, 6519), (5043, 6201)]