1291869

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{389}}^1$

素因数の和:442

約数の個数: 20

約数和(自身を含む): 1981980

約数和(自身を除く): 690111

約数列:

[1, 3, 9, 27, 41, 81, 123, 369, 389, 1107, 1167, 3321, 3501, 10503, 15949, 31509, 47847, 143541, 430623, 1291869]

約数ペア:

[(1, 1291869), (3, 430623), (9, 143541), (27, 47847), (41, 31509), (81, 15949), (123, 10503), (369, 3501), (389, 3321), (1107, 1167)]