19717386

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1\times {\mathrm{563}}^1$

素因数の和:1030

約数の個数: 32

約数和(自身を含む): 42638400

約数和(自身を除く): 22921014

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 449, 563, 898, 1126, 1347, 1689, 2694, 3378, 5837, 7319, 11674, 14638, 17511, 21957, 35022, 43914, 252787, 505574, 758361, 1516722, 3286231, 6572462, 9858693, 19717386]

約数ペア:

[(1, 19717386), (2, 9858693), (3, 6572462), (6, 3286231), (13, 1516722), (26, 758361), (39, 505574), (78, 252787), (449, 43914), (563, 35022), (898, 21957), (1126, 17511), (1347, 14638), (1689, 11674), (2694, 7319), (3378, 5837)]