54321321

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{293}}^1\times {\mathrm{2131}}^1$

素因数の和:2456

約数の個数: 16

約数和(自身を含む): 75216960

約数和(自身を除く): 20895639

約数列:

[1, 3, 29, 87, 293, 879, 2131, 6393, 8497, 25491, 61799, 185397, 624383, 1873149, 18107107, 54321321]

約数ペア:

[(1, 54321321), (3, 18107107), (29, 1873149), (87, 624383), (293, 185397), (879, 61799), (2131, 25491), (6393, 8497)]