20178753

素因数分解:

$3^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{2903}}^1$

素因数の和:3244

約数の個数: 16

約数和(自身を含む): 30852096

約数和(自身を除く): 10673343

約数列:

[1, 3, 7, 21, 331, 993, 2317, 2903, 6951, 8709, 20321, 60963, 960893, 2882679, 6726251, 20178753]

約数ペア:

[(1, 20178753), (3, 6726251), (7, 2882679), (21, 960893), (331, 60963), (993, 20321), (2317, 8709), (2903, 6951)]