28478247

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{241}}^1\times {\mathrm{331}}^1$

素因数の和:599

約数の個数: 32

約数和(自身を含む): 46278144

約数和(自身を除く): 17799897

約数列:

[1, 3, 7, 17, 21, 51, 119, 241, 331, 357, 723, 993, 1687, 2317, 4097, 5061, 5627, 6951, 12291, 16881, 28679, 39389, 79771, 86037, 118167, 239313, 558397, 1356107, 1675191, 4068321, 9492749, 28478247]

約数ペア:

[(1, 28478247), (3, 9492749), (7, 4068321), (17, 1675191), (21, 1356107), (51, 558397), (119, 239313), (241, 118167), (331, 86037), (357, 79771), (723, 39389), (993, 28679), (1687, 16881), (2317, 12291), (4097, 6951), (5061, 5627)]