20215756

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{4549}}^1$

素因数の和:4665

約数の個数: 24

約数和(自身を含む): 38984400

約数和(自身を除く): 18768644

約数列:

[1, 2, 4, 11, 22, 44, 101, 202, 404, 1111, 2222, 4444, 4549, 9098, 18196, 50039, 100078, 200156, 459449, 918898, 1837796, 5053939, 10107878, 20215756]

約数ペア:

[(1, 20215756), (2, 10107878), (4, 5053939), (11, 1837796), (22, 918898), (44, 459449), (101, 200156), (202, 100078), (404, 50039), (1111, 18196), (2222, 9098), (4444, 4549)]