67920321

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{27179}}^1$

素因数の和:27213

約数の個数: 24

約数和(自身を含む): 111546720

約数和(自身を除く): 43626399

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 27179, 81537, 190253, 462043, 570759, 1331771, 1386129, 3234301, 3995313, 9702903, 22640107, 67920321]

約数ペア:

[(1, 67920321), (3, 22640107), (7, 9702903), (17, 3995313), (21, 3234301), (49, 1386129), (51, 1331771), (119, 570759), (147, 462043), (357, 190253), (833, 81537), (2499, 27179)]