19879205

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{863}}^1$

素因数の和:1156

約数の個数: 16

約数和(自身を含む): 25380864

約数和(自身を除く): 5501659

約数列:

[1, 5, 17, 85, 271, 863, 1355, 4315, 4607, 14671, 23035, 73355, 233873, 1169365, 3975841, 19879205]

約数ペア:

[(1, 19879205), (5, 3975841), (17, 1169365), (85, 233873), (271, 73355), (863, 23035), (1355, 14671), (4315, 4607)]