18814895

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{137}}^1\times {\mathrm{227}}^1$

素因数の和:391

約数の個数: 24

約数和(自身を含む): 25108272

約数和(自身を除く): 6293377

約数列:

[1, 5, 11, 55, 121, 137, 227, 605, 685, 1135, 1507, 2497, 7535, 12485, 16577, 27467, 31099, 82885, 137335, 155495, 342089, 1710445, 3762979, 18814895]

約数ペア:

[(1, 18814895), (5, 3762979), (11, 1710445), (55, 342089), (121, 155495), (137, 137335), (227, 82885), (605, 31099), (685, 27467), (1135, 16577), (1507, 12485), (2497, 7535)]