18315801

素因数分解:

$3^4\times 7^1\times {\mathrm{32303}}^1$

素因数の和:32322

約数の個数: 20

約数和(自身を含む): 31270272

約数和(自身を除く): 12954471

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 32303, 96909, 226121, 290727, 678363, 872181, 2035089, 2616543, 6105267, 18315801]

約数ペア:

[(1, 18315801), (3, 6105267), (7, 2616543), (9, 2035089), (21, 872181), (27, 678363), (63, 290727), (81, 226121), (189, 96909), (567, 32303)]