21902910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16979}}^1$

素因数の和:17032

約数の個数: 32

約数和(自身を含む): 53792640

約数和(自身を除く): 31889730

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 16979, 33958, 50937, 84895, 101874, 169790, 254685, 509370, 730097, 1460194, 2190291, 3650485, 4380582, 7300970, 10951455, 21902910]

約数ペア:

[(1, 21902910), (2, 10951455), (3, 7300970), (5, 4380582), (6, 3650485), (10, 2190291), (15, 1460194), (30, 730097), (43, 509370), (86, 254685), (129, 169790), (215, 101874), (258, 84895), (430, 50937), (645, 33958), (1290, 16979)]