18942469

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{227}}^1$

素因数の和:385

約数の個数: 24

約数和(自身を含む): 24016608

約数和(自身を除く): 5074139

約数列:

[1, 7, 13, 49, 91, 131, 227, 637, 917, 1589, 1703, 2951, 6419, 11123, 11921, 20657, 29737, 83447, 144599, 208159, 386581, 1457113, 2706067, 18942469]

約数ペア:

[(1, 18942469), (7, 2706067), (13, 1457113), (49, 386581), (91, 208159), (131, 144599), (227, 83447), (637, 29737), (917, 20657), (1589, 11921), (1703, 11123), (2951, 6419)]