19995145

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{3511}}^1$

素因数の和:3600

約数の個数: 16

約数和(自身を含む): 25792128

約数和(自身を除く): 5796983

約数列:

[1, 5, 17, 67, 85, 335, 1139, 3511, 5695, 17555, 59687, 235237, 298435, 1176185, 3999029, 19995145]

約数ペア:

[(1, 19995145), (5, 3999029), (17, 1176185), (67, 298435), (85, 235237), (335, 59687), (1139, 17555), (3511, 5695)]