18220347

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:184

約数の個数: 36

約数和(自身を含む): 28468440

約数和(自身を除く): 10248093

約数列:

[1, 3, 9, 23, 43, 69, 89, 129, 207, 267, 387, 529, 801, 989, 1587, 2047, 2967, 3827, 4761, 6141, 8901, 11481, 18423, 22747, 34443, 47081, 68241, 88021, 141243, 204723, 264063, 423729, 792189, 2024483, 6073449, 18220347]

約数ペア:

[(1, 18220347), (3, 6073449), (9, 2024483), (23, 792189), (43, 423729), (69, 264063), (89, 204723), (129, 141243), (207, 88021), (267, 68241), (387, 47081), (529, 34443), (801, 22747), (989, 18423), (1587, 11481), (2047, 8901), (2967, 6141), (3827, 4761)]