19909830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{663661}}^1$

素因数の和:663671

約数の個数: 16

約数和(自身を含む): 47783664

約数和(自身を除く): 27873834

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 663661, 1327322, 1990983, 3318305, 3981966, 6636610, 9954915, 19909830]

約数ペア:

[(1, 19909830), (2, 9954915), (3, 6636610), (5, 3981966), (6, 3318305), (10, 1990983), (15, 1327322), (30, 663661)]