18920830

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{6547}}^1$

素因数の和:6588

約数の個数: 24

約数和(自身を含む): 36184248

約数和(自身を除く): 17263418

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2890, 6547, 13094, 32735, 65470, 111299, 222598, 556495, 1112990, 1892083, 3784166, 9460415, 18920830]

約数ペア:

[(1, 18920830), (2, 9460415), (5, 3784166), (10, 1892083), (17, 1112990), (34, 556495), (85, 222598), (170, 111299), (289, 65470), (578, 32735), (1445, 13094), (2890, 6547)]