15663984921

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1\times {\mathrm{311}}^1$

素因数の和:651

約数の個数: 96

約数和(自身を含む): 26075212800

約数和(自身を除く): 10411227879

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 139, 163, 171, 247, 311, 417, 489, 741, 933, 1251, 1467, 1807, 2119, 2223, 2641, 2799, 3097, 4043, 5421, 5909, 6357, 7923, 9291, 12129, 16263, 17727, 19071, 22657, 23769, 27873, 34333, 36387, 40261, 43229, 50693, 53181, 67971, 76817, 102999, 120783, 129687, 152079, 203913, 230451, 294541, 308997, 362349, 389061, 430483, 456237, 561977, 659009, 691353, 821351, 883623, 963167, 1291449, 1685931, 1977027, 2464053, 2650869, 2889501, 3874347, 5057793, 5596279, 5931081, 7046327, 7392159, 8668503, 10677563, 12521171, 16788837, 21138981, 32032689, 37563513, 50366511, 63416943, 91602251, 96098067, 112690539, 133880213, 274806753, 401640639, 824420259, 1204921917, 1740442769, 5221328307, 15663984921]

約数ペア:

[(1, 15663984921), (3, 5221328307), (9, 1740442769), (13, 1204921917), (19, 824420259), (39, 401640639), (57, 274806753), (117, 133880213), (139, 112690539), (163, 96098067), (171, 91602251), (247, 63416943), (311, 50366511), (417, 37563513), (489, 32032689), (741, 21138981), (933, 16788837), (1251, 12521171), (1467, 10677563), (1807, 8668503), (2119, 7392159), (2223, 7046327), (2641, 5931081), (2799, 5596279), (3097, 5057793), (4043, 3874347), (5421, 2889501), (5909, 2650869), (6357, 2464053), (7923, 1977027), (9291, 1685931), (12129, 1291449), (16263, 963167), (17727, 883623), (19071, 821351), (22657, 691353), (23769, 659009), (27873, 561977), (34333, 456237), (36387, 430483), (40261, 389061), (43229, 362349), (50693, 308997), (53181, 294541), (67971, 230451), (76817, 203913), (102999, 152079), (120783, 129687)]