19115225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1097}}^1$

素因数の和:1165

約数の個数: 24

約数和(自身を含む): 25732728

約数和(自身を除く): 6617503

約数列:

[1, 5, 17, 25, 41, 85, 205, 425, 697, 1025, 1097, 3485, 5485, 17425, 18649, 27425, 44977, 93245, 224885, 466225, 764609, 1124425, 3823045, 19115225]

約数ペア:

[(1, 19115225), (5, 3823045), (17, 1124425), (25, 764609), (41, 466225), (85, 224885), (205, 93245), (425, 44977), (697, 27425), (1025, 18649), (1097, 17425), (3485, 5485)]