260790789

素因数分解:

$3^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{13339}}^1$

素因数の和:13382

約数の個数: 32

約数和(自身を含む): 426880000

約数和(自身を除く): 166089211

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 343, 399, 931, 1029, 2793, 6517, 13339, 19551, 40017, 93373, 253441, 280119, 653611, 760323, 1774087, 1960833, 4575277, 5322261, 12418609, 13725831, 37255827, 86930263, 260790789]

約数ペア:

[(1, 260790789), (3, 86930263), (7, 37255827), (19, 13725831), (21, 12418609), (49, 5322261), (57, 4575277), (133, 1960833), (147, 1774087), (343, 760323), (399, 653611), (931, 280119), (1029, 253441), (2793, 93373), (6517, 40017), (13339, 19551)]