19919745

素因数分解:

$3^2\times 5^1\times {\mathrm{599}}^1\times {\mathrm{739}}^1$

素因数の和:1349

約数の個数: 24

約数和(自身を含む): 34632000

約数和(自身を除く): 14712255

約数列:

[1, 3, 5, 9, 15, 45, 599, 739, 1797, 2217, 2995, 3695, 5391, 6651, 8985, 11085, 26955, 33255, 442661, 1327983, 2213305, 3983949, 6639915, 19919745]

約数ペア:

[(1, 19919745), (3, 6639915), (5, 3983949), (9, 2213305), (15, 1327983), (45, 442661), (599, 33255), (739, 26955), (1797, 11085), (2217, 8985), (2995, 6651), (3695, 5391)]