20956658

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{13451}}^1$

素因数の和:13513

約数の個数: 16

約数和(自身を含む): 33899040

約数和(自身を除く): 12942382

約数列:

[1, 2, 19, 38, 41, 82, 779, 1558, 13451, 26902, 255569, 511138, 551491, 1102982, 10478329, 20956658]

約数ペア:

[(1, 20956658), (2, 10478329), (19, 1102982), (38, 551491), (41, 511138), (82, 255569), (779, 26902), (1558, 13451)]