20109165

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{31177}}^1$

素因数の和:31228

約数の個数: 16

約数和(自身を含む): 32923968

約数和(自身を除く): 12814803

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 31177, 93531, 155885, 467655, 1340611, 4021833, 6703055, 20109165]

約数ペア:

[(1, 20109165), (3, 6703055), (5, 4021833), (15, 1340611), (43, 467655), (129, 155885), (215, 93531), (645, 31177)]