18651441

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{1487}}^1$

素因数の和:1640

約数の個数: 16

約数和(自身を含む): 25784064

約数和(自身を除く): 7132623

約数列:

[1, 3, 37, 111, 113, 339, 1487, 4181, 4461, 12543, 55019, 165057, 168031, 504093, 6217147, 18651441]

約数ペア:

[(1, 18651441), (3, 6217147), (37, 504093), (111, 168031), (113, 165057), (339, 55019), (1487, 12543), (4181, 4461)]