21004267

素因数分解:

${\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{331}}^1$

素因数の和:474

約数の個数: 16

約数和(自身を含む): 22947840

約数和(自身を除く): 1943573

約数列:

[1, 23, 31, 89, 331, 713, 2047, 2759, 7613, 10261, 29459, 63457, 236003, 677557, 913229, 21004267]

約数ペア:

[(1, 21004267), (23, 913229), (31, 677557), (89, 236003), (331, 63457), (713, 29459), (2047, 10261), (2759, 7613)]