18709713

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{4021}}^1$

素因数の和:4085

約数の個数: 24

約数和(自身を含む): 30116736

約数和(自身を除く): 11407023

約数列:

[1, 3, 9, 11, 33, 47, 99, 141, 423, 517, 1551, 4021, 4653, 12063, 36189, 44231, 132693, 188987, 398079, 566961, 1700883, 2078857, 6236571, 18709713]

約数ペア:

[(1, 18709713), (3, 6236571), (9, 2078857), (11, 1700883), (33, 566961), (47, 398079), (99, 188987), (141, 132693), (423, 44231), (517, 36189), (1551, 12063), (4021, 4653)]