20166895

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{18587}}^1$

素因数の和:18630

約数の個数: 16

約数和(自身を含む): 28551168

約数和(自身を除く): 8384273

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 18587, 92935, 130109, 576197, 650545, 2880985, 4033379, 20166895]

約数ペア:

[(1, 20166895), (5, 4033379), (7, 2880985), (31, 650545), (35, 576197), (155, 130109), (217, 92935), (1085, 18587)]