19520475

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{20021}}^1$

素因数の和:20047

約数の個数: 24

約数和(自身を含む): 34758192

約数和(自身を除く): 15237717

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 20021, 60063, 100105, 260273, 300315, 500525, 780819, 1301365, 1501575, 3904095, 6506825, 19520475]

約数ペア:

[(1, 19520475), (3, 6506825), (5, 3904095), (13, 1501575), (15, 1301365), (25, 780819), (39, 500525), (65, 300315), (75, 260273), (195, 100105), (325, 60063), (975, 20021)]