21781822

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{2459}}^1$

素因数の和:2607

約数の個数: 16

約数和(自身を含む): 33770880

約数和(自身を除く): 11989058

約数列:

[1, 2, 43, 86, 103, 206, 2459, 4429, 4918, 8858, 105737, 211474, 253277, 506554, 10890911, 21781822]

約数ペア:

[(1, 21781822), (2, 10890911), (43, 506554), (86, 253277), (103, 211474), (206, 105737), (2459, 8858), (4429, 4918)]