21918256

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{25847}}^1$

素因数の和:25908

約数の個数: 20

約数和(自身を含む): 43269552

約数和(自身を除く): 21351296

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 25847, 51694, 103388, 206776, 413552, 1369891, 2739782, 5479564, 10959128, 21918256]

約数ペア:

[(1, 21918256), (2, 10959128), (4, 5479564), (8, 2739782), (16, 1369891), (53, 413552), (106, 206776), (212, 103388), (424, 51694), (848, 25847)]