1640259747

素因数分解:

$3^3\times 7^1\times {\mathrm{1129}}^1\times {\mathrm{7687}}^1$

素因数の和:8832

約数の個数: 32

約数和(自身を含む): 2779980800

約数和(自身を除く): 1139721053

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 1129, 3387, 7687, 7903, 10161, 23061, 23709, 30483, 53809, 69183, 71127, 161427, 207549, 213381, 484281, 1452843, 8678623, 26035869, 60750361, 78107607, 182251083, 234322821, 546753249, 1640259747]

約数ペア:

[(1, 1640259747), (3, 546753249), (7, 234322821), (9, 182251083), (21, 78107607), (27, 60750361), (63, 26035869), (189, 8678623), (1129, 1452843), (3387, 484281), (7687, 213381), (7903, 207549), (10161, 161427), (23061, 71127), (23709, 69183), (30483, 53809)]