251189289

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{715639}}^1$

素因数の和:715661

約数の個数: 16

約数和(自身を含む): 400758400

約数和(自身を除く): 149569111

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 715639, 2146917, 6440751, 9303307, 19322253, 27909921, 83729763, 251189289]

約数ペア:

[(1, 251189289), (3, 83729763), (9, 27909921), (13, 19322253), (27, 9303307), (39, 6440751), (117, 2146917), (351, 715639)]