21569156

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{263}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 45239040

約数和(自身を除く): 23669884

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 101, 116, 202, 203, 263, 404, 406, 526, 707, 812, 1052, 1414, 1841, 2828, 2929, 3682, 5858, 7364, 7627, 11716, 15254, 20503, 26563, 30508, 41006, 53126, 53389, 82012, 106252, 106778, 185941, 213556, 371882, 743764, 770327, 1540654, 3081308, 5392289, 10784578, 21569156]

約数ペア:

[(1, 21569156), (2, 10784578), (4, 5392289), (7, 3081308), (14, 1540654), (28, 770327), (29, 743764), (58, 371882), (101, 213556), (116, 185941), (202, 106778), (203, 106252), (263, 82012), (404, 53389), (406, 53126), (526, 41006), (707, 30508), (812, 26563), (1052, 20503), (1414, 15254), (1841, 11716), (2828, 7627), (2929, 7364), (3682, 5858)]