20513714

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{16787}}^1$

素因数の和:16849

約数の個数: 16

約数和(自身を含む): 33844608

約数和(自身を除く): 13330894

約数列:

[1, 2, 13, 26, 47, 94, 611, 1222, 16787, 33574, 218231, 436462, 788989, 1577978, 10256857, 20513714]

約数ペア:

[(1, 20513714), (2, 10256857), (13, 1577978), (26, 788989), (47, 436462), (94, 218231), (611, 33574), (1222, 16787)]