21317283

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{60733}}^1$

素因数の和:60755

約数の個数: 16

約数和(自身を含む): 34011040

約数和(自身を除く): 12693757

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 60733, 182199, 546597, 789529, 1639791, 2368587, 7105761, 21317283]

約数ペア:

[(1, 21317283), (3, 7105761), (9, 2368587), (13, 1639791), (27, 789529), (39, 546597), (117, 182199), (351, 60733)]