21238095

素因数分解:

$3^1\times 5^1\times {\mathrm{709}}^1\times {\mathrm{1997}}^1$

素因数の和:2714

約数の個数: 16

約数和(自身を含む): 34045920

約数和(自身を除く): 12807825

約数列:

[1, 3, 5, 15, 709, 1997, 2127, 3545, 5991, 9985, 10635, 29955, 1415873, 4247619, 7079365, 21238095]

約数ペア:

[(1, 21238095), (3, 7079365), (5, 4247619), (15, 1415873), (709, 29955), (1997, 10635), (2127, 9985), (3545, 5991)]