20528898

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{263191}}^1$

素因数の和:263209

約数の個数: 16

約数和(自身を含む): 44216256

約数和(自身を除く): 23687358

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 263191, 526382, 789573, 1579146, 3421483, 6842966, 10264449, 20528898]

約数ペア:

[(1, 20528898), (2, 10264449), (3, 6842966), (6, 3421483), (13, 1579146), (26, 789573), (39, 526382), (78, 263191)]