19398775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{3067}}^1$

素因数の和:3111

約数の個数: 24

約数和(自身を含む): 27391104

約数和(自身を除く): 7992329

約数列:

[1, 5, 11, 23, 25, 55, 115, 253, 275, 575, 1265, 3067, 6325, 15335, 33737, 70541, 76675, 168685, 352705, 775951, 843425, 1763525, 3879755, 19398775]

約数ペア:

[(1, 19398775), (5, 3879755), (11, 1763525), (23, 843425), (25, 775951), (55, 352705), (115, 168685), (253, 76675), (275, 70541), (575, 33737), (1265, 15335), (3067, 6325)]