28843209

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{4001}}^1$

素因数の和:4102

約数の個数: 20

約数和(自身を含む): 43581780

約数和(自身を除く): 14738571

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 2403, 4001, 7209, 12003, 36009, 108027, 324081, 356089, 1068267, 3204801, 9614403, 28843209]

約数ペア:

[(1, 28843209), (3, 9614403), (9, 3204801), (27, 1068267), (81, 356089), (89, 324081), (267, 108027), (801, 36009), (2403, 12003), (4001, 7209)]