21615772

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{241}}^1\times {\mathrm{1319}}^1$

素因数の和:1581

約数の個数: 24

約数和(自身を含む): 40249440

約数和(自身を除く): 18633668

約数列:

[1, 2, 4, 17, 34, 68, 241, 482, 964, 1319, 2638, 4097, 5276, 8194, 16388, 22423, 44846, 89692, 317879, 635758, 1271516, 5403943, 10807886, 21615772]

約数ペア:

[(1, 21615772), (2, 10807886), (4, 5403943), (17, 1271516), (34, 635758), (68, 317879), (241, 89692), (482, 44846), (964, 22423), (1319, 16388), (2638, 8194), (4097, 5276)]