638465037

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{8291}}^1$

素因数の和:8513

約数の個数: 32

約数和(自身を含む): 1029534720

約数和(自身を除く): 391069683

約数列:

[1, 3, 7, 19, 21, 57, 133, 193, 399, 579, 1351, 3667, 4053, 8291, 11001, 24873, 25669, 58037, 77007, 157529, 174111, 472587, 1102703, 1600163, 3308109, 4800489, 11201141, 30403097, 33603423, 91209291, 212821679, 638465037]

約数ペア:

[(1, 638465037), (3, 212821679), (7, 91209291), (19, 33603423), (21, 30403097), (57, 11201141), (133, 4800489), (193, 3308109), (399, 1600163), (579, 1102703), (1351, 472587), (3667, 174111), (4053, 157529), (8291, 77007), (11001, 58037), (24873, 25669)]