20971906

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{2797}}^1$

素因数の和:2985

約数の個数: 16

約数和(自身を含む): 33038784

約数和(自身を除く): 12066878

約数列:

[1, 2, 23, 46, 163, 326, 2797, 3749, 5594, 7498, 64331, 128662, 455911, 911822, 10485953, 20971906]

約数ペア:

[(1, 20971906), (2, 10485953), (23, 911822), (46, 455911), (163, 128662), (326, 64331), (2797, 7498), (3749, 5594)]