28312533

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{491}}^1$

素因数の和:689

約数の個数: 24

約数和(自身を含む): 42213600

約数和(自身を除く): 13901067

約数列:

[1, 3, 9, 43, 129, 149, 387, 447, 491, 1341, 1473, 4419, 6407, 19221, 21113, 57663, 63339, 73159, 190017, 219477, 658431, 3145837, 9437511, 28312533]

約数ペア:

[(1, 28312533), (3, 9437511), (9, 3145837), (43, 658431), (129, 219477), (149, 190017), (387, 73159), (447, 63339), (491, 57663), (1341, 21113), (1473, 19221), (4419, 6407)]