21421533

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{44351}}^1$

素因数の和:44384

約数の個数: 16

約数和(自身を含む): 34062336

約数和(自身を除く): 12640803

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 44351, 133053, 310457, 931371, 1020073, 3060219, 7140511, 21421533]

約数ペア:

[(1, 21421533), (3, 7140511), (7, 3060219), (21, 1020073), (23, 931371), (69, 310457), (161, 133053), (483, 44351)]