21427578

素因数分解:

$2^1\times 3^4\times {\mathrm{29}}^1\times {\mathrm{4561}}^1$

素因数の和:4604

約数の個数: 40

約数和(自身を含む): 49680180

約数和(自身を除く): 28252602

約数列:

[1, 2, 3, 6, 9, 18, 27, 29, 54, 58, 81, 87, 162, 174, 261, 522, 783, 1566, 2349, 4561, 4698, 9122, 13683, 27366, 41049, 82098, 123147, 132269, 246294, 264538, 369441, 396807, 738882, 793614, 1190421, 2380842, 3571263, 7142526, 10713789, 21427578]

約数ペア:

[(1, 21427578), (2, 10713789), (3, 7142526), (6, 3571263), (9, 2380842), (18, 1190421), (27, 793614), (29, 738882), (54, 396807), (58, 369441), (81, 264538), (87, 246294), (162, 132269), (174, 123147), (261, 82098), (522, 41049), (783, 27366), (1566, 13683), (2349, 9122), (4561, 4698)]