21969699

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1\times {\mathrm{443}}^1$

素因数の和:778

約数の個数: 16

約数和(自身を含む): 29950464

約数和(自身を除く): 7980765

約数列:

[1, 3, 61, 183, 271, 443, 813, 1329, 16531, 27023, 49593, 81069, 120053, 360159, 7323233, 21969699]

約数ペア:

[(1, 21969699), (3, 7323233), (61, 360159), (183, 120053), (271, 81069), (443, 49593), (813, 27023), (1329, 16531)]