20499721

素因数分解:

${\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:432

約数の個数: 16

約数和(自身を含む): 22998528

約数和(自身を除く): 2498807

約数列:

[1, 11, 61, 137, 223, 671, 1507, 2453, 8357, 13603, 30551, 91927, 149633, 336061, 1863611, 20499721]

約数ペア:

[(1, 20499721), (11, 1863611), (61, 336061), (137, 149633), (223, 91927), (671, 30551), (1507, 13603), (2453, 8357)]