21428652

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3593}}^1$

素因数の和:3678

約数の個数: 48

約数和(自身を含む): 57964032

約数和(自身を除く): 36535380

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 71, 84, 142, 213, 284, 426, 497, 852, 994, 1491, 1988, 2982, 3593, 5964, 7186, 10779, 14372, 21558, 25151, 43116, 50302, 75453, 100604, 150906, 255103, 301812, 510206, 765309, 1020412, 1530618, 1785721, 3061236, 3571442, 5357163, 7142884, 10714326, 21428652]

約数ペア:

[(1, 21428652), (2, 10714326), (3, 7142884), (4, 5357163), (6, 3571442), (7, 3061236), (12, 1785721), (14, 1530618), (21, 1020412), (28, 765309), (42, 510206), (71, 301812), (84, 255103), (142, 150906), (213, 100604), (284, 75453), (426, 50302), (497, 43116), (852, 25151), (994, 21558), (1491, 14372), (1988, 10779), (2982, 7186), (3593, 5964)]