21912215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{14657}}^1$

素因数の和:14698

約数の個数: 16

約数和(自身を含む): 29550528

約数和(自身を除く): 7638313

約数列:

[1, 5, 13, 23, 65, 115, 299, 1495, 14657, 73285, 190541, 337111, 952705, 1685555, 4382443, 21912215]

約数ペア:

[(1, 21912215), (5, 4382443), (13, 1685555), (23, 952705), (65, 337111), (115, 190541), (299, 73285), (1495, 14657)]