20655664

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{21881}}^1$

素因数の和:21948

約数の個数: 20

約数和(自身を含む): 40700520

約数和(自身を除く): 20044856

約数列:

[1, 2, 4, 8, 16, 59, 118, 236, 472, 944, 21881, 43762, 87524, 175048, 350096, 1290979, 2581958, 5163916, 10327832, 20655664]

約数ペア:

[(1, 20655664), (2, 10327832), (4, 5163916), (8, 2581958), (16, 1290979), (59, 350096), (118, 175048), (236, 87524), (472, 43762), (944, 21881)]