19715878

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^3\times {\mathrm{641}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 36671040

約数和(自身を除く): 16955162

約数列:

[1, 2, 7, 13, 14, 26, 91, 169, 182, 338, 641, 1183, 1282, 2197, 2366, 4394, 4487, 8333, 8974, 15379, 16666, 30758, 58331, 108329, 116662, 216658, 758303, 1408277, 1516606, 2816554, 9857939, 19715878]

約数ペア:

[(1, 19715878), (2, 9857939), (7, 2816554), (13, 1516606), (14, 1408277), (26, 758303), (91, 216658), (169, 116662), (182, 108329), (338, 58331), (641, 30758), (1183, 16666), (1282, 15379), (2197, 8974), (2366, 8333), (4394, 4487)]