20688335

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{577}}^1$

素因数の和:754

約数の個数: 16

約数和(自身を含む): 25468992

約数和(自身を除く): 4780657

約数列:

[1, 5, 71, 101, 355, 505, 577, 2885, 7171, 35855, 40967, 58277, 204835, 291385, 4137667, 20688335]

約数ペア:

[(1, 20688335), (5, 4137667), (71, 291385), (101, 204835), (355, 58277), (505, 40967), (577, 35855), (2885, 7171)]