21356458

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1\times {\mathrm{859}}^1$

素因数の和:1293

約数の個数: 16

約数和(自身を含む): 33189120

約数和(自身を除く): 11832662

約数列:

[1, 2, 31, 62, 401, 802, 859, 1718, 12431, 24862, 26629, 53258, 344459, 688918, 10678229, 21356458]

約数ペア:

[(1, 21356458), (2, 10678229), (31, 688918), (62, 344459), (401, 53258), (802, 26629), (859, 24862), (1718, 12431)]