42754959

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2137}}^1$

素因数の和:2181

約数の個数: 40

約数和(自身を含む): 72435440

約数和(自身を除く): 29680481

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 81, 117, 171, 247, 351, 513, 741, 1053, 1539, 2137, 2223, 6411, 6669, 19233, 20007, 27781, 40603, 57699, 83343, 121809, 173097, 250029, 365427, 527839, 750087, 1096281, 1583517, 2250261, 3288843, 4750551, 14251653, 42754959]

約数ペア:

[(1, 42754959), (3, 14251653), (9, 4750551), (13, 3288843), (19, 2250261), (27, 1583517), (39, 1096281), (57, 750087), (81, 527839), (117, 365427), (171, 250029), (247, 173097), (351, 121809), (513, 83343), (741, 57699), (1053, 40603), (1539, 27781), (2137, 20007), (2223, 19233), (6411, 6669)]