19703145

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2437}}^1$

素因数の和:2470

約数の個数: 48

約数和(自身を含む): 40022208

約数和(自身を除く): 20319063

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 49, 55, 77, 105, 147, 165, 231, 245, 385, 539, 735, 1155, 1617, 2437, 2695, 7311, 8085, 12185, 17059, 26807, 36555, 51177, 80421, 85295, 119413, 134035, 187649, 255885, 358239, 402105, 562947, 597065, 938245, 1313543, 1791195, 2814735, 3940629, 6567715, 19703145]

約数ペア:

[(1, 19703145), (3, 6567715), (5, 3940629), (7, 2814735), (11, 1791195), (15, 1313543), (21, 938245), (33, 597065), (35, 562947), (49, 402105), (55, 358239), (77, 255885), (105, 187649), (147, 134035), (165, 119413), (231, 85295), (245, 80421), (385, 51177), (539, 36555), (735, 26807), (1155, 17059), (1617, 12185), (2437, 8085), (2695, 7311)]