19892455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{3581}}^1$

素因数の和:3698

約数の個数: 16

約数和(自身を含む): 26306208

約数和(自身を除く): 6413753

約数列:

[1, 5, 11, 55, 101, 505, 1111, 3581, 5555, 17905, 39391, 196955, 361681, 1808405, 3978491, 19892455]

約数ペア:

[(1, 19892455), (5, 3978491), (11, 1808405), (55, 361681), (101, 196955), (505, 39391), (1111, 17905), (3581, 5555)]