12798775

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{4231}}^1$

素因数の和:4263

約数の個数: 18

約数和(自身を含む): 17448536

約数和(自身を除く): 4649761

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 4231, 21155, 46541, 105775, 232705, 511951, 1163525, 2559755, 12798775]

約数ペア:

[(1, 12798775), (5, 2559755), (11, 1163525), (25, 511951), (55, 232705), (121, 105775), (275, 46541), (605, 21155), (3025, 4231)]