20178574995

素因数分解:

$3^1\times 5^1\times {\mathrm{20431}}^1\times {\mathrm{65843}}^1$

素因数の和:86282

約数の個数: 16

約数和(自身を含む): 32287790592

約数和(自身を除く): 12109215597

約数列:

[1, 3, 5, 15, 20431, 61293, 65843, 102155, 197529, 306465, 329215, 987645, 1345238333, 4035714999, 6726191665, 20178574995]

約数ペア:

[(1, 20178574995), (3, 6726191665), (5, 4035714999), (15, 1345238333), (20431, 987645), (61293, 329215), (65843, 306465), (102155, 197529)]