21666441

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{593}}^1\times {\mathrm{641}}^1$

素因数の和:1256

約数の個数: 16

約数和(自身を含む): 30507840

約数和(自身を除く): 8841399

約数列:

[1, 3, 19, 57, 593, 641, 1779, 1923, 11267, 12179, 33801, 36537, 380113, 1140339, 7222147, 21666441]

約数ペア:

[(1, 21666441), (3, 7222147), (19, 1140339), (57, 380113), (593, 36537), (641, 33801), (1779, 12179), (1923, 11267)]