81551372

素因数分解:

$2^2\times 7^1\times {\mathrm{991}}^1\times {\mathrm{2939}}^1$

素因数の和:3941

約数の個数: 24

約数和(自身を含む): 163322880

約数和(自身を除く): 81771508

約数列:

[1, 2, 4, 7, 14, 28, 991, 1982, 2939, 3964, 5878, 6937, 11756, 13874, 20573, 27748, 41146, 82292, 2912549, 5825098, 11650196, 20387843, 40775686, 81551372]

約数ペア:

[(1, 81551372), (2, 40775686), (4, 20387843), (7, 11650196), (14, 5825098), (28, 2912549), (991, 82292), (1982, 41146), (2939, 27748), (3964, 20573), (5878, 13874), (6937, 11756)]