18523687

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:199

約数の個数: 32

約数和(自身を含む): 23998464

約数和(自身を除く): 5474777

約数列:

[1, 7, 13, 47, 61, 71, 91, 329, 427, 497, 611, 793, 923, 2867, 3337, 4277, 4331, 5551, 6461, 20069, 23359, 30317, 37271, 43381, 56303, 203557, 260897, 303667, 394121, 1424899, 2646241, 18523687]

約数ペア:

[(1, 18523687), (7, 2646241), (13, 1424899), (47, 394121), (61, 303667), (71, 260897), (91, 203557), (329, 56303), (427, 43381), (497, 37271), (611, 30317), (793, 23359), (923, 20069), (2867, 6461), (3337, 5551), (4277, 4331)]