19917990501

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{811}}^1\times {\mathrm{355939}}^1$

素因数の和:356776

約数の個数: 16

約数和(自身を含む): 27746234880

約数和(自身を除く): 7828244379

約数列:

[1, 3, 23, 69, 811, 2433, 18653, 55959, 355939, 1067817, 8186597, 24559791, 288666529, 865999587, 6639330167, 19917990501]

約数ペア:

[(1, 19917990501), (3, 6639330167), (23, 865999587), (69, 288666529), (811, 24559791), (2433, 8186597), (18653, 1067817), (55959, 355939)]