28121366

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:249

約数の個数: 64

約数和(自身を含む): 56246400

約数和(自身を除く): 28125034

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 61, 91, 119, 122, 149, 182, 221, 238, 298, 427, 442, 793, 854, 1037, 1043, 1547, 1586, 1937, 2074, 2086, 2533, 3094, 3874, 5066, 5551, 7259, 9089, 11102, 13481, 13559, 14518, 17731, 18178, 26962, 27118, 32929, 35462, 63623, 65858, 94367, 118157, 127246, 154513, 188734, 230503, 236314, 309026, 461006, 827099, 1081591, 1654198, 2008669, 2163182, 4017338, 14060683, 28121366]

約数ペア:

[(1, 28121366), (2, 14060683), (7, 4017338), (13, 2163182), (14, 2008669), (17, 1654198), (26, 1081591), (34, 827099), (61, 461006), (91, 309026), (119, 236314), (122, 230503), (149, 188734), (182, 154513), (221, 127246), (238, 118157), (298, 94367), (427, 65858), (442, 63623), (793, 35462), (854, 32929), (1037, 27118), (1043, 26962), (1547, 18178), (1586, 17731), (1937, 14518), (2074, 13559), (2086, 13481), (2533, 11102), (3094, 9089), (3874, 7259), (5066, 5551)]