21296410

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{7369}}^1$

素因数の和:7410

約数の個数: 24

約数和(自身を含む): 40726620

約数和(自身を除く): 19430210

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2890, 7369, 14738, 36845, 73690, 125273, 250546, 626365, 1252730, 2129641, 4259282, 10648205, 21296410]

約数ペア:

[(1, 21296410), (2, 10648205), (5, 4259282), (10, 2129641), (17, 1252730), (34, 626365), (85, 250546), (170, 125273), (289, 73690), (578, 36845), (1445, 14738), (2890, 7369)]