19900845

素因数分解:

$3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4969}}^1$

素因数の和:5069

約数の個数: 24

約数和(自身を含む): 34889400

約数和(自身を除く): 14988555

約数列:

[1, 3, 5, 9, 15, 45, 89, 267, 445, 801, 1335, 4005, 4969, 14907, 24845, 44721, 74535, 223605, 442241, 1326723, 2211205, 3980169, 6633615, 19900845]

約数ペア:

[(1, 19900845), (3, 6633615), (5, 3980169), (9, 2211205), (15, 1326723), (45, 442241), (89, 223605), (267, 74535), (445, 44721), (801, 24845), (1335, 14907), (4005, 4969)]