2019908821

素因数分解:

$7^3\times {\mathrm{283}}^1\times {\mathrm{20809}}^1$

素因数の和:21113

約数の個数: 16

約数和(自身を含む): 2364016000

約数和(自身を除く): 344107179

約数列:

[1, 7, 49, 283, 343, 1981, 13867, 20809, 97069, 145663, 1019641, 5888947, 7137487, 41222629, 288558403, 2019908821]

約数ペア:

[(1, 2019908821), (7, 288558403), (49, 41222629), (283, 7137487), (343, 5888947), (1981, 1019641), (13867, 145663), (20809, 97069)]