31218417

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{241}}^1\times {\mathrm{389}}^1$

素因数の和:673

約数の個数: 24

約数和(自身を含む): 46623720

約数和(自身を除く): 15405303

約数列:

[1, 3, 9, 37, 111, 241, 333, 389, 723, 1167, 2169, 3501, 8917, 14393, 26751, 43179, 80253, 93749, 129537, 281247, 843741, 3468713, 10406139, 31218417]

約数ペア:

[(1, 31218417), (3, 10406139), (9, 3468713), (37, 843741), (111, 281247), (241, 129537), (333, 93749), (389, 80253), (723, 43179), (1167, 26751), (2169, 14393), (3501, 8917)]