21522640

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{9277}}^1$

素因数の和:9319

約数の個数: 40

約数和(自身を含む): 51771240

約数和(自身を除く): 30248600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 9277, 18554, 37108, 46385, 74216, 92770, 148432, 185540, 269033, 371080, 538066, 742160, 1076132, 1345165, 2152264, 2690330, 4304528, 5380660, 10761320, 21522640]

約数ペア:

[(1, 21522640), (2, 10761320), (4, 5380660), (5, 4304528), (8, 2690330), (10, 2152264), (16, 1345165), (20, 1076132), (29, 742160), (40, 538066), (58, 371080), (80, 269033), (116, 185540), (145, 148432), (232, 92770), (290, 74216), (464, 46385), (580, 37108), (1160, 18554), (2320, 9277)]