20929808

素因数分解:

$2^4\times {\mathrm{151}}^1\times {\mathrm{8663}}^1$

素因数の和:8822

約数の個数: 20

約数和(自身を含む): 40824768

約数和(自身を除く): 19894960

約数列:

[1, 2, 4, 8, 16, 151, 302, 604, 1208, 2416, 8663, 17326, 34652, 69304, 138608, 1308113, 2616226, 5232452, 10464904, 20929808]

約数ペア:

[(1, 20929808), (2, 10464904), (4, 5232452), (8, 2616226), (16, 1308113), (151, 138608), (302, 69304), (604, 34652), (1208, 17326), (2416, 8663)]