18968157

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{727}}^1$

素因数の和:969

約数の個数: 24

約数和(自身を含む): 29679104

約数和(自身を除く): 10710947

約数列:

[1, 3, 9, 13, 39, 117, 223, 669, 727, 2007, 2181, 2899, 6543, 8697, 9451, 26091, 28353, 85059, 162121, 486363, 1459089, 2107573, 6322719, 18968157]

約数ペア:

[(1, 18968157), (3, 6322719), (9, 2107573), (13, 1459089), (39, 486363), (117, 162121), (223, 85059), (669, 28353), (727, 26091), (2007, 9451), (2181, 8697), (2899, 6543)]