21000514815

素因数分解:

$3^4\times 5^1\times 7^2\times {\mathrm{1058227}}^1$

素因数の和:1058258

約数の個数: 60

約数和(自身を含む): 43791591096

約数和(自身を除く): 22791076281

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 81, 105, 135, 147, 189, 245, 315, 405, 441, 567, 735, 945, 1323, 2205, 2835, 3969, 6615, 19845, 1058227, 3174681, 5291135, 7407589, 9524043, 15873405, 22222767, 28572129, 37037945, 47620215, 51853123, 66668301, 85716387, 111113835, 142860645, 155559369, 200004903, 259265615, 333341505, 428581935, 466678107, 600014709, 777796845, 1000024515, 1400034321, 2333390535, 3000073545, 4200102963, 7000171605, 21000514815]

約数ペア:

[(1, 21000514815), (3, 7000171605), (5, 4200102963), (7, 3000073545), (9, 2333390535), (15, 1400034321), (21, 1000024515), (27, 777796845), (35, 600014709), (45, 466678107), (49, 428581935), (63, 333341505), (81, 259265615), (105, 200004903), (135, 155559369), (147, 142860645), (189, 111113835), (245, 85716387), (315, 66668301), (405, 51853123), (441, 47620215), (567, 37037945), (735, 28572129), (945, 22222767), (1323, 15873405), (2205, 9524043), (2835, 7407589), (3969, 5291135), (6615, 3174681), (19845, 1058227)]