25202009

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{331}}^1$

素因数の和:560

約数の個数: 16

約数和(自身を含む): 29481600

約数和(自身を除く): 4279591

約数列:

[1, 7, 73, 149, 331, 511, 1043, 2317, 10877, 24163, 49319, 76139, 169141, 345233, 3600287, 25202009]

約数ペア:

[(1, 25202009), (7, 3600287), (73, 345233), (149, 169141), (331, 76139), (511, 49319), (1043, 24163), (2317, 10877)]