19709859

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{397}}^1$

素因数の和:499

約数の個数: 32

約数和(自身を含む): 30311680

約数和(自身を除く): 10601821

約数列:

[1, 3, 13, 19, 39, 57, 67, 201, 247, 397, 741, 871, 1191, 1273, 2613, 3819, 5161, 7543, 15483, 16549, 22629, 26599, 49647, 79797, 98059, 294177, 345787, 505381, 1037361, 1516143, 6569953, 19709859]

約数ペア:

[(1, 19709859), (3, 6569953), (13, 1516143), (19, 1037361), (39, 505381), (57, 345787), (67, 294177), (201, 98059), (247, 79797), (397, 49647), (741, 26599), (871, 22629), (1191, 16549), (1273, 15483), (2613, 7543), (3819, 5161)]