18926817

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{5333}}^1$

素因数の和:5369

約数の個数: 24

約数和(自身を含む): 31235904

約数和(自身を除く): 12309087

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 273, 507, 1183, 3549, 5333, 15999, 37331, 69329, 111993, 207987, 485303, 901277, 1455909, 2703831, 6308939, 18926817]

約数ペア:

[(1, 18926817), (3, 6308939), (7, 2703831), (13, 1455909), (21, 901277), (39, 485303), (91, 207987), (169, 111993), (273, 69329), (507, 37331), (1183, 15999), (3549, 5333)]