19921385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{3323}}^1$

素因数の和:3448

約数の個数: 16

約数和(自身を含む): 26326080

約数和(自身を除く): 6404695

約数列:

[1, 5, 11, 55, 109, 545, 1199, 3323, 5995, 16615, 36553, 182765, 362207, 1811035, 3984277, 19921385]

約数ペア:

[(1, 19921385), (5, 3984277), (11, 1811035), (55, 362207), (109, 182765), (545, 36553), (1199, 16615), (3323, 5995)]