21069153

素因数分解:

$3^4\times 7^1\times {\mathrm{37159}}^1$

素因数の和:37178

約数の個数: 20

約数和(自身を含む): 35970880

約数和(自身を除く): 14901727

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 37159, 111477, 260113, 334431, 780339, 1003293, 2341017, 3009879, 7023051, 21069153]

約数ペア:

[(1, 21069153), (3, 7023051), (7, 3009879), (9, 2341017), (21, 1003293), (27, 780339), (63, 334431), (81, 260113), (189, 111477), (567, 37159)]