20259519

素因数分解:

$3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{6389}}^1$

素因数の和:6550

約数の個数: 16

約数和(自身を含む): 31080960

約数和(自身を除く): 10821441

約数列:

[1, 3, 7, 21, 151, 453, 1057, 3171, 6389, 19167, 44723, 134169, 964739, 2894217, 6753173, 20259519]

約数ペア:

[(1, 20259519), (3, 6753173), (7, 2894217), (21, 964739), (151, 134169), (453, 44723), (1057, 19167), (3171, 6389)]