19611879

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{7129}}^1$

素因数の和:7270

約数の個数: 16

約数和(自身を含む): 30117120

約数和(自身を除く): 10505241

約数列:

[1, 3, 7, 21, 131, 393, 917, 2751, 7129, 21387, 49903, 149709, 933899, 2801697, 6537293, 19611879]

約数ペア:

[(1, 19611879), (3, 6537293), (7, 2801697), (21, 933899), (131, 149709), (393, 49903), (917, 21387), (2751, 7129)]