21878610

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{56099}}^1$

素因数の和:56122

約数の個数: 32

約数和(自身を含む): 56548800

約数和(自身を除く): 34670190

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 56099, 112198, 168297, 280495, 336594, 560990, 729287, 841485, 1458574, 1682970, 2187861, 3646435, 4375722, 7292870, 10939305, 21878610]

約数ペア:

[(1, 21878610), (2, 10939305), (3, 7292870), (5, 4375722), (6, 3646435), (10, 2187861), (13, 1682970), (15, 1458574), (26, 841485), (30, 729287), (39, 560990), (65, 336594), (78, 280495), (130, 168297), (195, 112198), (390, 56099)]