18719116

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{27691}}^1$

素因数の和:27721

約数の個数: 18

約数和(自身を含む): 35473452

約数和(自身を除く): 16754336

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 27691, 55382, 110764, 359983, 719966, 1439932, 4679779, 9359558, 18719116]

約数ペア:

[(1, 18719116), (2, 9359558), (4, 4679779), (13, 1439932), (26, 719966), (52, 359983), (169, 110764), (338, 55382), (676, 27691)]