19791447

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{509}}^1\times {\mathrm{997}}^1$

素因数の和:1522

約数の個数: 16

約数和(自身を含む): 28502880

約数和(自身を除く): 8711433

約数列:

[1, 3, 13, 39, 509, 997, 1527, 2991, 6617, 12961, 19851, 38883, 507473, 1522419, 6597149, 19791447]

約数ペア:

[(1, 19791447), (3, 6597149), (13, 1522419), (39, 507473), (509, 38883), (997, 19851), (1527, 12961), (2991, 6617)]