12761217

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1523}}^1$

素因数の和:1562

約数の個数: 36

約数和(自身を含む): 22585680

約数和(自身を除く): 9824463

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 399, 441, 931, 1197, 1523, 2793, 4569, 8379, 10661, 13707, 28937, 31983, 74627, 86811, 95949, 202559, 223881, 260433, 607677, 671643, 1417913, 1823031, 4253739, 12761217]

約数ペア:

[(1, 12761217), (3, 4253739), (7, 1823031), (9, 1417913), (19, 671643), (21, 607677), (49, 260433), (57, 223881), (63, 202559), (133, 95949), (147, 86811), (171, 74627), (399, 31983), (441, 28937), (931, 13707), (1197, 10661), (1523, 8379), (2793, 4569)]