20263285

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{9491}}^1$

素因数の和:9564

約数の個数: 16

約数和(自身を含む): 28248192

約数和(自身を除く): 7984907

約数列:

[1, 5, 7, 35, 61, 305, 427, 2135, 9491, 47455, 66437, 332185, 578951, 2894755, 4052657, 20263285]

約数ペア:

[(1, 20263285), (5, 4052657), (7, 2894755), (35, 578951), (61, 332185), (305, 66437), (427, 47455), (2135, 9491)]