7212159

素因数分解:

$3^4\times {\mathrm{269}}^1\times {\mathrm{331}}^1$

素因数の和:612

約数の個数: 20

約数和(自身を含む): 10846440

約数和(自身を除く): 3634281

約数列:

[1, 3, 9, 27, 81, 269, 331, 807, 993, 2421, 2979, 7263, 8937, 21789, 26811, 89039, 267117, 801351, 2404053, 7212159]

約数ペア:

[(1, 7212159), (3, 2404053), (9, 801351), (27, 267117), (81, 89039), (269, 26811), (331, 21789), (807, 8937), (993, 7263), (2421, 2979)]