745120509

素因数分解:

$3^1\times 7^3\times {\mathrm{724121}}^1$

素因数の和:724145

約数の個数: 16

約数和(自身を含む): 1158595200

約数和(自身を除く): 413474691

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 724121, 2172363, 5068847, 15206541, 35481929, 106445787, 248373503, 745120509]

約数ペア:

[(1, 745120509), (3, 248373503), (7, 106445787), (21, 35481929), (49, 15206541), (147, 5068847), (343, 2172363), (1029, 724121)]