21076195

素因数分解:

$5^1\times 7^1\times {\mathrm{73}}^2\times {\mathrm{113}}^1$

素因数の和:271

約数の個数: 24

約数和(自身を含む): 29565216

約数和(自身を除く): 8489021

約数列:

[1, 5, 7, 35, 73, 113, 365, 511, 565, 791, 2555, 3955, 5329, 8249, 26645, 37303, 41245, 57743, 186515, 288715, 602177, 3010885, 4215239, 21076195]

約数ペア:

[(1, 21076195), (5, 4215239), (7, 3010885), (35, 602177), (73, 288715), (113, 186515), (365, 57743), (511, 41245), (565, 37303), (791, 26645), (2555, 8249), (3955, 5329)]