17990955

素因数分解:

$3^2\times 5^1\times {\mathrm{541}}^1\times {\mathrm{739}}^1$

素因数の和:1291

約数の個数: 24

約数和(自身を含む): 31284240

約数和(自身を除く): 13293285

約数列:

[1, 3, 5, 9, 15, 45, 541, 739, 1623, 2217, 2705, 3695, 4869, 6651, 8115, 11085, 24345, 33255, 399799, 1199397, 1998995, 3598191, 5996985, 17990955]

約数ペア:

[(1, 17990955), (3, 5996985), (5, 3598191), (9, 1998995), (15, 1199397), (45, 399799), (541, 33255), (739, 24345), (1623, 11085), (2217, 8115), (2705, 6651), (3695, 4869)]