21325518

素因数分解:

$2^1\times 3^4\times {\mathrm{131639}}^1$

素因数の和:131653

約数の個数: 20

約数和(自身を含む): 47785320

約数和(自身を除く): 26459802

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 131639, 263278, 394917, 789834, 1184751, 2369502, 3554253, 7108506, 10662759, 21325518]

約数ペア:

[(1, 21325518), (2, 10662759), (3, 7108506), (6, 3554253), (9, 2369502), (18, 1184751), (27, 789834), (54, 394917), (81, 263278), (162, 131639)]