19742253

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{521}}^1\times {\mathrm{743}}^1$

素因数の和:1284

約数の個数: 16

約数和(自身を含む): 27962496

約数和(自身を除く): 8220243

約数列:

[1, 3, 17, 51, 521, 743, 1563, 2229, 8857, 12631, 26571, 37893, 387103, 1161309, 6580751, 19742253]

約数ペア:

[(1, 19742253), (3, 6580751), (17, 1161309), (51, 387103), (521, 37893), (743, 26571), (1563, 12631), (2229, 8857)]