19937021

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{509}}^1$

素因数の和:676

約数の個数: 16

約数和(自身を含む): 22619520

約数和(自身を除く): 2682499

約数列:

[1, 13, 23, 131, 299, 509, 1703, 3013, 6617, 11707, 39169, 66679, 152191, 866827, 1533617, 19937021]

約数ペア:

[(1, 19937021), (13, 1533617), (23, 866827), (131, 152191), (299, 66679), (509, 39169), (1703, 11707), (3013, 6617)]