21837585

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:143

約数の個数: 96

約数和(自身を含む): 46161792

約数和(自身を除く): 24324207

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 37, 49, 55, 73, 77, 105, 111, 147, 165, 185, 219, 231, 245, 259, 365, 385, 407, 511, 539, 555, 735, 777, 803, 1095, 1155, 1221, 1295, 1533, 1617, 1813, 2035, 2409, 2555, 2695, 2701, 2849, 3577, 3885, 4015, 5439, 5621, 6105, 7665, 8085, 8103, 8547, 9065, 10731, 12045, 13505, 14245, 16863, 17885, 18907, 19943, 27195, 28105, 29711, 39347, 40515, 42735, 53655, 56721, 59829, 84315, 89133, 94535, 99715, 118041, 132349, 148555, 196735, 207977, 283605, 299145, 397047, 445665, 590205, 623931, 661745, 1039885, 1455839, 1985235, 3119655, 4367517, 7279195, 21837585]

約数ペア:

[(1, 21837585), (3, 7279195), (5, 4367517), (7, 3119655), (11, 1985235), (15, 1455839), (21, 1039885), (33, 661745), (35, 623931), (37, 590205), (49, 445665), (55, 397047), (73, 299145), (77, 283605), (105, 207977), (111, 196735), (147, 148555), (165, 132349), (185, 118041), (219, 99715), (231, 94535), (245, 89133), (259, 84315), (365, 59829), (385, 56721), (407, 53655), (511, 42735), (539, 40515), (555, 39347), (735, 29711), (777, 28105), (803, 27195), (1095, 19943), (1155, 18907), (1221, 17885), (1295, 16863), (1533, 14245), (1617, 13505), (1813, 12045), (2035, 10731), (2409, 9065), (2555, 8547), (2695, 8103), (2701, 8085), (2849, 7665), (3577, 6105), (3885, 5621), (4015, 5439)]