21202885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{1613}}^1$

素因数の和:1868

約数の個数: 16

約数和(自身を含む): 27889920

約数和(自身を除く): 6687035

約数列:

[1, 5, 11, 55, 239, 1195, 1613, 2629, 8065, 13145, 17743, 88715, 385507, 1927535, 4240577, 21202885]

約数ペア:

[(1, 21202885), (5, 4240577), (11, 1927535), (55, 385507), (239, 88715), (1195, 17743), (1613, 13145), (2629, 8065)]