21457564

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{1907}}^1$

素因数の和:2037

約数の個数: 24

約数和(自身を含む): 39266640

約数和(自身を除く): 17809076

約数列:

[1, 2, 4, 29, 58, 97, 116, 194, 388, 1907, 2813, 3814, 5626, 7628, 11252, 55303, 110606, 184979, 221212, 369958, 739916, 5364391, 10728782, 21457564]

約数ペア:

[(1, 21457564), (2, 10728782), (4, 5364391), (29, 739916), (58, 369958), (97, 221212), (116, 184979), (194, 110606), (388, 55303), (1907, 11252), (2813, 7628), (3814, 5626)]