18938255

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{4547}}^1$

素因数の和:4583

約数の個数: 24

約数和(自身を含む): 27997488

約数和(自身を除く): 9059233

約数列:

[1, 5, 7, 17, 35, 49, 85, 119, 245, 595, 833, 4165, 4547, 22735, 31829, 77299, 159145, 222803, 386495, 541093, 1114015, 2705465, 3787651, 18938255]

約数ペア:

[(1, 18938255), (5, 3787651), (7, 2705465), (17, 1114015), (35, 541093), (49, 386495), (85, 222803), (119, 159145), (245, 77299), (595, 31829), (833, 22735), (4165, 4547)]