21197927

素因数分解:

${\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{521}}^1$

素因数の和:634

約数の個数: 16

約数和(自身を含む): 23302080

約数和(自身を除く): 2104153

約数列:

[1, 23, 29, 61, 521, 667, 1403, 1769, 11983, 15109, 31781, 40687, 347507, 730963, 921649, 21197927]

約数ペア:

[(1, 21197927), (23, 921649), (29, 730963), (61, 347507), (521, 40687), (667, 31781), (1403, 15109), (1769, 11983)]