21995403

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{1021}}^1$

素因数の和:1234

約数の個数: 16

約数和(自身を含む): 30218496

約数和(自身を除く): 8223093

約数列:

[1, 3, 43, 129, 167, 501, 1021, 3063, 7181, 21543, 43903, 131709, 170507, 511521, 7331801, 21995403]

約数ペア:

[(1, 21995403), (3, 7331801), (43, 511521), (129, 170507), (167, 131709), (501, 43903), (1021, 21543), (3063, 7181)]