1390256721

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{3727}}^1$

素因数の和:3962

約数の個数: 48

約数和(自身を含む): 2382102528

約数和(自身を除く): 991845807

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 191, 217, 279, 573, 651, 1337, 1719, 1953, 3727, 4011, 5921, 11181, 12033, 17763, 26089, 33543, 41447, 53289, 78267, 115537, 124341, 234801, 346611, 373023, 711857, 808759, 1039833, 2135571, 2426277, 4982999, 6406713, 7278831, 14948997, 22067567, 44846991, 66202701, 154472969, 198608103, 463418907, 1390256721]

約数ペア:

[(1, 1390256721), (3, 463418907), (7, 198608103), (9, 154472969), (21, 66202701), (31, 44846991), (63, 22067567), (93, 14948997), (191, 7278831), (217, 6406713), (279, 4982999), (573, 2426277), (651, 2135571), (1337, 1039833), (1719, 808759), (1953, 711857), (3727, 373023), (4011, 346611), (5921, 234801), (11181, 124341), (12033, 115537), (17763, 78267), (26089, 53289), (33543, 41447)]