21871489

素因数分解:

${\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{167}}^1$

素因数の和:360

約数の個数: 16

約数和(自身を含む): 23748480

約数和(自身を除く): 1876991

約数列:

[1, 19, 61, 113, 167, 1159, 2147, 3173, 6893, 10187, 18871, 130967, 193553, 358549, 1151131, 21871489]

約数ペア:

[(1, 21871489), (19, 1151131), (61, 358549), (113, 193553), (167, 130967), (1159, 18871), (2147, 10187), (3173, 6893)]