21360568

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{9239}}^1$

素因数の和:9279

約数の個数: 24

約数和(自身を含む): 42550200

約数和(自身を除く): 21189632

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 289, 578, 1156, 2312, 9239, 18478, 36956, 73912, 157063, 314126, 628252, 1256504, 2670071, 5340142, 10680284, 21360568]

約数ペア:

[(1, 21360568), (2, 10680284), (4, 5340142), (8, 2670071), (17, 1256504), (34, 628252), (68, 314126), (136, 157063), (289, 73912), (578, 36956), (1156, 18478), (2312, 9239)]