20967578

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{991}}^1$

素因数の和:1213

約数の個数: 16

約数和(自身を含む): 32140800

約数和(自身を除く): 11173222

約数列:

[1, 2, 71, 142, 149, 298, 991, 1982, 10579, 21158, 70361, 140722, 147659, 295318, 10483789, 20967578]

約数ペア:

[(1, 20967578), (2, 10483789), (71, 295318), (142, 147659), (149, 140722), (298, 70361), (991, 21158), (1982, 10579)]