31481331

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{541}}^1$

素因数の和:731

約数の個数: 32

約数和(自身を含む): 51199488

約数和(自身を除く): 19718157

約数列:

[1, 3, 7, 17, 21, 51, 119, 163, 357, 489, 541, 1141, 1623, 2771, 3423, 3787, 8313, 9197, 11361, 19397, 27591, 58191, 64379, 88183, 193137, 264549, 617281, 1499111, 1851843, 4497333, 10493777, 31481331]

約数ペア:

[(1, 31481331), (3, 10493777), (7, 4497333), (17, 1851843), (21, 1499111), (51, 617281), (119, 264549), (163, 193137), (357, 88183), (489, 64379), (541, 58191), (1141, 27591), (1623, 19397), (2771, 11361), (3423, 9197), (3787, 8313)]