21377331

素因数分解:

$3^3\times {\mathrm{307}}^1\times {\mathrm{2579}}^1$

素因数の和:2895

約数の個数: 16

約数和(自身を含む): 31785600

約数和(自身を除く): 10408269

約数列:

[1, 3, 9, 27, 307, 921, 2579, 2763, 7737, 8289, 23211, 69633, 791753, 2375259, 7125777, 21377331]

約数ペア:

[(1, 21377331), (3, 7125777), (9, 2375259), (27, 791753), (307, 69633), (921, 23211), (2579, 8289), (2763, 7737)]