19645795

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{773}}^1$

素因数の和:831

約数の個数: 32

約数和(自身を含む): 28086912

約数和(自身を除く): 8441117

約数列:

[1, 5, 13, 17, 23, 65, 85, 115, 221, 299, 391, 773, 1105, 1495, 1955, 3865, 5083, 10049, 13141, 17779, 25415, 50245, 65705, 88895, 170833, 231127, 302243, 854165, 1155635, 1511215, 3929159, 19645795]

約数ペア:

[(1, 19645795), (5, 3929159), (13, 1511215), (17, 1155635), (23, 854165), (65, 302243), (85, 231127), (115, 170833), (221, 88895), (299, 65705), (391, 50245), (773, 25415), (1105, 17779), (1495, 13141), (1955, 10049), (3865, 5083)]