20409796

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42169}}^1$

素因数の和:42195

約数の個数: 18

約数和(自身を含む): 39260270

約数和(自身を除く): 18850474

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42169, 84338, 168676, 463859, 927718, 1855436, 5102449, 10204898, 20409796]

約数ペア:

[(1, 20409796), (2, 10204898), (4, 5102449), (11, 1855436), (22, 927718), (44, 463859), (121, 168676), (242, 84338), (484, 42169)]