210928991

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{74771}}^1$

素因数の和:74822

約数の個数: 16

約数和(自身を含む): 267982848

約数和(自身を除く): 57053857

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 74771, 523397, 972023, 2317901, 6804161, 16225307, 30132713, 210928991]

約数ペア:

[(1, 210928991), (7, 30132713), (13, 16225307), (31, 6804161), (91, 2317901), (217, 972023), (403, 523397), (2821, 74771)]