18795898

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{769}}^1$

素因数の和:894

約数の個数: 24

約数和(自身を含む): 31337460

約数和(自身を除く): 12541562

約数列:

[1, 2, 11, 22, 101, 121, 202, 242, 769, 1111, 1538, 2222, 8459, 12221, 16918, 24442, 77669, 93049, 155338, 186098, 854359, 1708718, 9397949, 18795898]

約数ペア:

[(1, 18795898), (2, 9397949), (11, 1708718), (22, 854359), (101, 186098), (121, 155338), (202, 93049), (242, 77669), (769, 24442), (1111, 16918), (1538, 12221), (2222, 8459)]