20762847

素因数分解:

$3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2371}}^1$

素因数の和:2523

約数の個数: 24

約数和(自身を含む): 34536320

約数和(自身を除く): 13773473

約数列:

[1, 3, 7, 9, 21, 63, 139, 417, 973, 1251, 2371, 2919, 7113, 8757, 16597, 21339, 49791, 149373, 329569, 988707, 2306983, 2966121, 6920949, 20762847]

約数ペア:

[(1, 20762847), (3, 6920949), (7, 2966121), (9, 2306983), (21, 988707), (63, 329569), (139, 149373), (417, 49791), (973, 21339), (1251, 16597), (2371, 8757), (2919, 7113)]