19992273

素因数分解:

$3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{6949}}^1$

素因数の和:7096

約数の個数: 16

約数和(自身を含む): 30691200

約数和(自身を除く): 10698927

約数列:

[1, 3, 7, 21, 137, 411, 959, 2877, 6949, 20847, 48643, 145929, 952013, 2856039, 6664091, 19992273]

約数ペア:

[(1, 19992273), (3, 6664091), (7, 2856039), (21, 952013), (137, 145929), (411, 48643), (959, 20847), (2877, 6949)]