20681486

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{769}}^1$

素因数の和:908

約数の個数: 32

約数和(自身を含む): 37920960

約数和(自身を除く): 17239474

約数列:

[1, 2, 7, 14, 17, 34, 113, 119, 226, 238, 769, 791, 1538, 1582, 1921, 3842, 5383, 10766, 13073, 13447, 26146, 26894, 86897, 91511, 173794, 183022, 608279, 1216558, 1477249, 2954498, 10340743, 20681486]

約数ペア:

[(1, 20681486), (2, 10340743), (7, 2954498), (14, 1477249), (17, 1216558), (34, 608279), (113, 183022), (119, 173794), (226, 91511), (238, 86897), (769, 26894), (791, 26146), (1538, 13447), (1582, 13073), (1921, 10766), (3842, 5383)]