25820289

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{28979}}^1$

素因数の和:29002

約数の個数: 20

約数和(自身を含む): 42078960

約数和(自身を除く): 16258671

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 28979, 86937, 260811, 318769, 782433, 956307, 2347299, 2868921, 8606763, 25820289]

約数ペア:

[(1, 25820289), (3, 8606763), (9, 2868921), (11, 2347299), (27, 956307), (33, 782433), (81, 318769), (99, 260811), (297, 86937), (891, 28979)]