12919775

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{4271}}^1$

素因数の和:4303

約数の個数: 18

約数和(自身を含む): 17613456

約数和(自身を除く): 4693681

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 4271, 21355, 46981, 106775, 234905, 516791, 1174525, 2583955, 12919775]

約数ペア:

[(1, 12919775), (5, 2583955), (11, 1174525), (25, 516791), (55, 234905), (121, 106775), (275, 46981), (605, 21355), (3025, 4271)]