251569791

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:221

約数の個数: 96

約数和(自身を含む): 449100288

約数和(自身を除く): 197530497

約数列:

[1, 3, 9, 11, 17, 23, 33, 51, 67, 69, 97, 99, 153, 187, 201, 207, 253, 291, 391, 561, 603, 737, 759, 873, 1067, 1139, 1173, 1541, 1649, 1683, 2211, 2231, 2277, 3201, 3417, 3519, 4301, 4623, 4947, 6499, 6633, 6693, 9603, 10251, 12529, 12903, 13869, 14841, 16951, 18139, 19497, 20079, 24541, 26197, 37587, 37927, 38709, 50853, 54417, 58491, 71489, 73623, 78591, 110483, 112761, 113781, 149477, 152559, 163251, 214467, 220869, 235773, 288167, 331449, 341343, 417197, 448431, 643401, 864501, 994347, 1215313, 1251591, 1345293, 1644247, 2541109, 2593503, 3645939, 3754773, 4932741, 7623327, 10937817, 14798223, 22869981, 27952199, 83856597, 251569791]

約数ペア:

[(1, 251569791), (3, 83856597), (9, 27952199), (11, 22869981), (17, 14798223), (23, 10937817), (33, 7623327), (51, 4932741), (67, 3754773), (69, 3645939), (97, 2593503), (99, 2541109), (153, 1644247), (187, 1345293), (201, 1251591), (207, 1215313), (253, 994347), (291, 864501), (391, 643401), (561, 448431), (603, 417197), (737, 341343), (759, 331449), (873, 288167), (1067, 235773), (1139, 220869), (1173, 214467), (1541, 163251), (1649, 152559), (1683, 149477), (2211, 113781), (2231, 112761), (2277, 110483), (3201, 78591), (3417, 73623), (3519, 71489), (4301, 58491), (4623, 54417), (4947, 50853), (6499, 38709), (6633, 37927), (6693, 37587), (9603, 26197), (10251, 24541), (12529, 20079), (12903, 19497), (13869, 18139), (14841, 16951)]