726421689

素因数分解:

$3^4\times 7^1\times {\mathrm{1281167}}^1$

素因数の和:1281186

約数の個数: 20

約数和(自身を含む): 1240170624

約数和(自身を除く): 513748935

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 1281167, 3843501, 8968169, 11530503, 26904507, 34591509, 80713521, 103774527, 242140563, 726421689]

約数ペア:

[(1, 726421689), (3, 242140563), (7, 103774527), (9, 80713521), (21, 34591509), (27, 26904507), (63, 11530503), (81, 8968169), (189, 3843501), (567, 1281167)]