20178418

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{40847}}^1$

素因数の和:40881

約数の個数: 16

約数和(自身を含む): 34312320

約数和(自身を除く): 14133902

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 40847, 81694, 531011, 776093, 1062022, 1552186, 10089209, 20178418]

約数ペア:

[(1, 20178418), (2, 10089209), (13, 1552186), (19, 1062022), (26, 776093), (38, 531011), (247, 81694), (494, 40847)]