20897525

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{75991}}^1$

素因数の和:76012

約数の個数: 12

約数和(自身を含む): 28269024

約数和(自身を除く): 7371499

約数列:

[1, 5, 11, 25, 55, 275, 75991, 379955, 835901, 1899775, 4179505, 20897525]

約数ペア:

[(1, 20897525), (5, 4179505), (11, 1899775), (25, 835901), (55, 379955), (275, 75991)]