28704743753

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{281}}^1\times {\mathrm{971}}^1$

素因数の和:1398

約数の個数: 48

約数和(自身を含む): 35622555840

約数和(自身を除く): 6917812087

約数列:

[1, 7, 19, 49, 113, 133, 281, 791, 931, 971, 1967, 2147, 5339, 5537, 6797, 13769, 15029, 18449, 31753, 37373, 47579, 105203, 109723, 129143, 222271, 261611, 272851, 603307, 768061, 904001, 1555897, 1909957, 2084737, 4223149, 5184169, 5376427, 13369699, 14593159, 29562043, 30832163, 36289183, 102152113, 215825141, 254024281, 585811097, 1510775987, 4100677679, 28704743753]

約数ペア:

[(1, 28704743753), (7, 4100677679), (19, 1510775987), (49, 585811097), (113, 254024281), (133, 215825141), (281, 102152113), (791, 36289183), (931, 30832163), (971, 29562043), (1967, 14593159), (2147, 13369699), (5339, 5376427), (5537, 5184169), (6797, 4223149), (13769, 2084737), (15029, 1909957), (18449, 1555897), (31753, 904001), (37373, 768061), (47579, 603307), (105203, 272851), (109723, 261611), (129143, 222271)]