20954674

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{18743}}^1$

素因数の和:18801

約数の個数: 16

約数和(自身を含む): 34638912

約数和(自身を除く): 13684238

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 18743, 37486, 243659, 487318, 805949, 1611898, 10477337, 20954674]

約数ペア:

[(1, 20954674), (2, 10477337), (13, 1611898), (26, 805949), (43, 487318), (86, 243659), (559, 37486), (1118, 18743)]