19961859

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{2857}}^1$

素因数の和:3014

約数の個数: 16

約数和(自身を含む): 28397088

約数和(自身を除く): 8435229

約数列:

[1, 3, 17, 51, 137, 411, 2329, 2857, 6987, 8571, 48569, 145707, 391409, 1174227, 6653953, 19961859]

約数ペア:

[(1, 19961859), (3, 6653953), (17, 1174227), (51, 391409), (137, 145707), (411, 48569), (2329, 8571), (2857, 6987)]