18717231

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{3221}}^1$

素因数の和:3386

約数の個数: 16

約数和(自身を含む): 27064800

約数和(自身を除く): 8347569

約数列:

[1, 3, 13, 39, 149, 447, 1937, 3221, 5811, 9663, 41873, 125619, 479929, 1439787, 6239077, 18717231]

約数ペア:

[(1, 18717231), (3, 6239077), (13, 1439787), (39, 479929), (149, 125619), (447, 41873), (1937, 9663), (3221, 5811)]