21521052

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{3163}}^1$

素因数の和:3189

約数の個数: 72

約数和(自身を含む): 64494976

約数和(自身を除く): 42973924

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 108, 126, 162, 189, 243, 252, 324, 378, 486, 567, 756, 972, 1134, 1701, 2268, 3163, 3402, 6326, 6804, 9489, 12652, 18978, 22141, 28467, 37956, 44282, 56934, 66423, 85401, 88564, 113868, 132846, 170802, 199269, 256203, 265692, 341604, 398538, 512406, 597807, 768609, 797076, 1024812, 1195614, 1537218, 1793421, 2391228, 3074436, 3586842, 5380263, 7173684, 10760526, 21521052]

約数ペア:

[(1, 21521052), (2, 10760526), (3, 7173684), (4, 5380263), (6, 3586842), (7, 3074436), (9, 2391228), (12, 1793421), (14, 1537218), (18, 1195614), (21, 1024812), (27, 797076), (28, 768609), (36, 597807), (42, 512406), (54, 398538), (63, 341604), (81, 265692), (84, 256203), (108, 199269), (126, 170802), (162, 132846), (189, 113868), (243, 88564), (252, 85401), (324, 66423), (378, 56934), (486, 44282), (567, 37956), (756, 28467), (972, 22141), (1134, 18978), (1701, 12652), (2268, 9489), (3163, 6804), (3402, 6326)]