19995579

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{10733}}^1$

素因数の和:10768

約数の個数: 20

約数和(自身を含む): 31171536

約数和(自身を除く): 11175957

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 10733, 32199, 96597, 246859, 289791, 740577, 869373, 2221731, 6665193, 19995579]

約数ペア:

[(1, 19995579), (3, 6665193), (9, 2221731), (23, 869373), (27, 740577), (69, 289791), (81, 246859), (207, 96597), (621, 32199), (1863, 10733)]