21372213

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{619}}^1\times {\mathrm{677}}^1$

素因数の和:1316

約数の個数: 16

約数和(自身を含む): 30265920

約数和(自身を除く): 8893707

約数列:

[1, 3, 17, 51, 619, 677, 1857, 2031, 10523, 11509, 31569, 34527, 419063, 1257189, 7124071, 21372213]

約数ペア:

[(1, 21372213), (3, 7124071), (17, 1257189), (51, 419063), (619, 34527), (677, 31569), (1857, 11509), (2031, 10523)]