261147411

素因数分解:

$3^2\times 7^2\times {\mathrm{743}}^1\times {\mathrm{797}}^1$

素因数の和:1560

約数の個数: 36

約数和(自身を含む): 439940592

約数和(自身を除く): 178793181

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 743, 797, 2229, 2391, 5201, 5579, 6687, 7173, 15603, 16737, 36407, 39053, 46809, 50211, 109221, 117159, 327663, 351477, 592171, 1776513, 4145197, 5329539, 12435591, 29016379, 37306773, 87049137, 261147411]

約数ペア:

[(1, 261147411), (3, 87049137), (7, 37306773), (9, 29016379), (21, 12435591), (49, 5329539), (63, 4145197), (147, 1776513), (441, 592171), (743, 351477), (797, 327663), (2229, 117159), (2391, 109221), (5201, 50211), (5579, 46809), (6687, 39053), (7173, 36407), (15603, 16737)]