18699989

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{10559}}^1$

素因数の和:10600

約数の個数: 16

約数和(自身を含む): 24330240

約数和(自身を除く): 5630251

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 10559, 73913, 116149, 242857, 813043, 1699999, 2671427, 18699989]

約数ペア:

[(1, 18699989), (7, 2671427), (11, 1699999), (23, 813043), (77, 242857), (161, 116149), (253, 73913), (1771, 10559)]