21417604

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{983}}^1$

素因数の和:1419

約数の個数: 24

約数和(自身を含む): 40501440

約数和(自身を除く): 19083836

約数列:

[1, 2, 4, 13, 26, 52, 419, 838, 983, 1676, 1966, 3932, 5447, 10894, 12779, 21788, 25558, 51116, 411877, 823754, 1647508, 5354401, 10708802, 21417604]

約数ペア:

[(1, 21417604), (2, 10708802), (4, 5354401), (13, 1647508), (26, 823754), (52, 411877), (419, 51116), (838, 25558), (983, 21788), (1676, 12779), (1966, 10894), (3932, 5447)]