31308459

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1571}}^1$

素因数の和:1667

約数の個数: 32

約数和(自身を含む): 52114944

約数和(自身を除く): 20806485

約数列:

[1, 3, 7, 13, 21, 39, 73, 91, 219, 273, 511, 949, 1533, 1571, 2847, 4713, 6643, 10997, 19929, 20423, 32991, 61269, 114683, 142961, 344049, 428883, 802781, 1490879, 2408343, 4472637, 10436153, 31308459]

約数ペア:

[(1, 31308459), (3, 10436153), (7, 4472637), (13, 2408343), (21, 1490879), (39, 802781), (73, 428883), (91, 344049), (219, 142961), (273, 114683), (511, 61269), (949, 32991), (1533, 20423), (1571, 19929), (2847, 10997), (4713, 6643)]