12121221

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1787}}^1$

素因数の和:1833

約数の個数: 32

約数和(自身を含む): 20597760

約数和(自身を除く): 8476539

約数列:

[1, 3, 7, 17, 19, 21, 51, 57, 119, 133, 323, 357, 399, 969, 1787, 2261, 5361, 6783, 12509, 30379, 33953, 37527, 91137, 101859, 212653, 237671, 577201, 637959, 713013, 1731603, 4040407, 12121221]

約数ペア:

[(1, 12121221), (3, 4040407), (7, 1731603), (17, 713013), (19, 637959), (21, 577201), (51, 237671), (57, 212653), (119, 101859), (133, 91137), (323, 37527), (357, 33953), (399, 30379), (969, 12509), (1787, 6783), (2261, 5361)]