2639030289

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{944873}}^1$

素因数の和:944909

約数の個数: 24

約数和(自身を含む): 4308625440

約数和(自身を除く): 1669595151

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 944873, 2834619, 6614111, 17952587, 19842333, 46298777, 53857761, 125668109, 138896331, 377004327, 879676763, 2639030289]

約数ペア:

[(1, 2639030289), (3, 879676763), (7, 377004327), (19, 138896331), (21, 125668109), (49, 53857761), (57, 46298777), (133, 19842333), (147, 17952587), (399, 6614111), (931, 2834619), (2793, 944873)]