21026995

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{863}}^1$

素因数の和:1322

約数の個数: 16

約数和(自身を含む): 27620352

約数和(自身を除く): 6593357

約数列:

[1, 5, 11, 55, 443, 863, 2215, 4315, 4873, 9493, 24365, 47465, 382309, 1911545, 4205399, 21026995]

約数ペア:

[(1, 21026995), (5, 4205399), (11, 1911545), (55, 382309), (443, 47465), (863, 24365), (2215, 9493), (4315, 4873)]