20372009

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{3259}}^1$

素因数の和:3332

約数の個数: 16

約数和(自身を含む): 25036800

約数和(自身を除く): 4664791

約数列:

[1, 7, 19, 47, 133, 329, 893, 3259, 6251, 22813, 61921, 153173, 433447, 1072211, 2910287, 20372009]

約数ペア:

[(1, 20372009), (7, 2910287), (19, 1072211), (47, 433447), (133, 153173), (329, 61921), (893, 22813), (3259, 6251)]