31791123

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1$

素因数の和:278

約数の個数: 80

約数和(自身を含む): 61797120

約数和(自身を除く): 30005997

約数列:

[1, 3, 7, 9, 13, 19, 21, 27, 39, 57, 63, 81, 91, 117, 133, 171, 189, 227, 247, 273, 351, 399, 513, 567, 681, 741, 819, 1053, 1197, 1539, 1589, 1729, 2043, 2223, 2457, 2951, 3591, 4313, 4767, 5187, 6129, 6669, 7371, 8853, 10773, 12939, 14301, 15561, 18387, 20007, 20657, 26559, 30191, 38817, 42903, 46683, 56069, 61971, 79677, 90573, 116451, 128709, 140049, 168207, 185913, 239031, 271719, 349353, 392483, 504621, 557739, 815157, 1177449, 1513863, 1673217, 2445471, 3532347, 4541589, 10597041, 31791123]

約数ペア:

[(1, 31791123), (3, 10597041), (7, 4541589), (9, 3532347), (13, 2445471), (19, 1673217), (21, 1513863), (27, 1177449), (39, 815157), (57, 557739), (63, 504621), (81, 392483), (91, 349353), (117, 271719), (133, 239031), (171, 185913), (189, 168207), (227, 140049), (247, 128709), (273, 116451), (351, 90573), (399, 79677), (513, 61971), (567, 56069), (681, 46683), (741, 42903), (819, 38817), (1053, 30191), (1197, 26559), (1539, 20657), (1589, 20007), (1729, 18387), (2043, 15561), (2223, 14301), (2457, 12939), (2951, 10773), (3591, 8853), (4313, 7371), (4767, 6669), (5187, 6129)]