81389028

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{968917}}^1$

素因数の和:968931

約数の個数: 24

約数和(自身を含む): 217037632

約数和(自身を除く): 135648604

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 968917, 1937834, 2906751, 3875668, 5813502, 6782419, 11627004, 13564838, 20347257, 27129676, 40694514, 81389028]

約数ペア:

[(1, 81389028), (2, 40694514), (3, 27129676), (4, 20347257), (6, 13564838), (7, 11627004), (12, 6782419), (14, 5813502), (21, 3875668), (28, 2906751), (42, 1937834), (84, 968917)]