21100011

素因数分解:

$3^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1\times {\mathrm{839}}^1$

素因数の和:1026

約数の個数: 16

約数和(自身を含む): 28788480

約数和(自身を除く): 7688469

約数列:

[1, 3, 83, 101, 249, 303, 839, 2517, 8383, 25149, 69637, 84739, 208911, 254217, 7033337, 21100011]

約数ペア:

[(1, 21100011), (3, 7033337), (83, 254217), (101, 208911), (249, 84739), (303, 69637), (839, 25149), (2517, 8383)]