18645893

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{647}}^1$

素因数の和:856

約数の個数: 16

約数和(自身を含む): 22394880

約数和(自身を除く): 3748987

約数列:

[1, 7, 23, 161, 179, 647, 1253, 4117, 4529, 14881, 28819, 104167, 115813, 810691, 2663699, 18645893]

約数ペア:

[(1, 18645893), (7, 2663699), (23, 810691), (161, 115813), (179, 104167), (647, 28819), (1253, 14881), (4117, 4529)]