39997779

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{2377}}^1$

素因数の和:2530

約数の個数: 16

約数和(自身を含む): 54789120

約数和(自身を除く): 14791341

約数列:

[1, 3, 71, 79, 213, 237, 2377, 5609, 7131, 16827, 168767, 187783, 506301, 563349, 13332593, 39997779]

約数ペア:

[(1, 39997779), (3, 13332593), (71, 563349), (79, 506301), (213, 187783), (237, 168767), (2377, 16827), (5609, 7131)]