31490145

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{18913}}^1$

素因数の和:18961

約数の個数: 24

約数和(自身を含む): 56061096

約数和(自身を除く): 24570951

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 18913, 56739, 94565, 170217, 283695, 699781, 851085, 2099343, 3498905, 6298029, 10496715, 31490145]

約数ペア:

[(1, 31490145), (3, 10496715), (5, 6298029), (9, 3498905), (15, 2099343), (37, 851085), (45, 699781), (111, 283695), (185, 170217), (333, 94565), (555, 56739), (1665, 18913)]