21225920

素因数分解:

$2^6\times 5^1\times {\mathrm{113}}^1\times {\mathrm{587}}^1$

素因数の和:717

約数の個数: 56

約数和(自身を含む): 51078384

約数和(自身を除く): 29852464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 113, 160, 226, 320, 452, 565, 587, 904, 1130, 1174, 1808, 2260, 2348, 2935, 3616, 4520, 4696, 5870, 7232, 9040, 9392, 11740, 18080, 18784, 23480, 36160, 37568, 46960, 66331, 93920, 132662, 187840, 265324, 331655, 530648, 663310, 1061296, 1326620, 2122592, 2653240, 4245184, 5306480, 10612960, 21225920]

約数ペア:

[(1, 21225920), (2, 10612960), (4, 5306480), (5, 4245184), (8, 2653240), (10, 2122592), (16, 1326620), (20, 1061296), (32, 663310), (40, 530648), (64, 331655), (80, 265324), (113, 187840), (160, 132662), (226, 93920), (320, 66331), (452, 46960), (565, 37568), (587, 36160), (904, 23480), (1130, 18784), (1174, 18080), (1808, 11740), (2260, 9392), (2348, 9040), (2935, 7232), (3616, 5870), (4520, 4696)]