20994416

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{18481}}^1$

素因数の和:18560

約数の個数: 20

約数和(自身を含む): 41251824

約数和(自身を除く): 20257408

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 18481, 36962, 73924, 147848, 295696, 1312151, 2624302, 5248604, 10497208, 20994416]

約数ペア:

[(1, 20994416), (2, 10497208), (4, 5248604), (8, 2624302), (16, 1312151), (71, 295696), (142, 147848), (284, 73924), (568, 36962), (1136, 18481)]