20885516

素因数分解:

$2^2\times {\mathrm{103}}^1\times {\mathrm{163}}^1\times {\mathrm{311}}^1$

素因数の和:581

約数の個数: 24

約数和(自身を含む): 37250304

約数和(自身を除く): 16364788

約数列:

[1, 2, 4, 103, 163, 206, 311, 326, 412, 622, 652, 1244, 16789, 32033, 33578, 50693, 64066, 67156, 101386, 128132, 202772, 5221379, 10442758, 20885516]

約数ペア:

[(1, 20885516), (2, 10442758), (4, 5221379), (103, 202772), (163, 128132), (206, 101386), (311, 67156), (326, 64066), (412, 50693), (622, 33578), (652, 32033), (1244, 16789)]