21580410

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16729}}^1$

素因数の和:16782

約数の個数: 32

約数和(自身を含む): 53000640

約数和(自身を除く): 31420230

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 16729, 33458, 50187, 83645, 100374, 167290, 250935, 501870, 719347, 1438694, 2158041, 3596735, 4316082, 7193470, 10790205, 21580410]

約数ペア:

[(1, 21580410), (2, 10790205), (3, 7193470), (5, 4316082), (6, 3596735), (10, 2158041), (15, 1438694), (30, 719347), (43, 501870), (86, 250935), (129, 167290), (215, 100374), (258, 83645), (430, 50187), (645, 33458), (1290, 16729)]