20617904

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{21841}}^1$

素因数の和:21908

約数の個数: 20

約数和(自身を含む): 40626120

約数和(自身を除く): 20008216

約数列:

[1, 2, 4, 8, 16, 59, 118, 236, 472, 944, 21841, 43682, 87364, 174728, 349456, 1288619, 2577238, 5154476, 10308952, 20617904]

約数ペア:

[(1, 20617904), (2, 10308952), (4, 5154476), (8, 2577238), (16, 1288619), (59, 349456), (118, 174728), (236, 87364), (472, 43682), (944, 21841)]