27881217

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{577}}^1$

素因数の和:662

約数の個数: 48

約数和(自身を含む): 50494080

約数和(自身を除く): 22612863

約数列:

[1, 3, 7, 9, 13, 21, 39, 59, 63, 91, 117, 177, 273, 413, 531, 577, 767, 819, 1239, 1731, 2301, 3717, 4039, 5193, 5369, 6903, 7501, 12117, 16107, 22503, 34043, 36351, 48321, 52507, 67509, 102129, 157521, 238301, 306387, 442559, 472563, 714903, 1327677, 2144709, 3097913, 3983031, 9293739, 27881217]

約数ペア:

[(1, 27881217), (3, 9293739), (7, 3983031), (9, 3097913), (13, 2144709), (21, 1327677), (39, 714903), (59, 472563), (63, 442559), (91, 306387), (117, 238301), (177, 157521), (273, 102129), (413, 67509), (531, 52507), (577, 48321), (767, 36351), (819, 34043), (1239, 22503), (1731, 16107), (2301, 12117), (3717, 7501), (4039, 6903), (5193, 5369)]