21738255

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:125

約数の個数: 96

約数和(自身を含む): 45964800

約数和(自身を除く): 24226545

約数列:

[1, 3, 5, 7, 11, 15, 21, 29, 33, 35, 55, 59, 77, 87, 105, 121, 145, 165, 177, 203, 231, 295, 319, 363, 385, 413, 435, 605, 609, 649, 847, 885, 957, 1015, 1155, 1239, 1595, 1711, 1815, 1947, 2065, 2233, 2541, 3045, 3245, 3509, 4235, 4543, 4785, 5133, 6195, 6699, 7139, 8555, 9735, 10527, 11165, 11977, 12705, 13629, 17545, 18821, 21417, 22715, 24563, 25665, 33495, 35695, 35931, 49973, 52635, 56463, 59885, 68145, 73689, 94105, 107085, 122815, 131747, 149919, 179655, 207031, 249865, 282315, 368445, 395241, 621093, 658735, 749595, 1035155, 1449217, 1976205, 3105465, 4347651, 7246085, 21738255]

約数ペア:

[(1, 21738255), (3, 7246085), (5, 4347651), (7, 3105465), (11, 1976205), (15, 1449217), (21, 1035155), (29, 749595), (33, 658735), (35, 621093), (55, 395241), (59, 368445), (77, 282315), (87, 249865), (105, 207031), (121, 179655), (145, 149919), (165, 131747), (177, 122815), (203, 107085), (231, 94105), (295, 73689), (319, 68145), (363, 59885), (385, 56463), (413, 52635), (435, 49973), (605, 35931), (609, 35695), (649, 33495), (847, 25665), (885, 24563), (957, 22715), (1015, 21417), (1155, 18821), (1239, 17545), (1595, 13629), (1711, 12705), (1815, 11977), (1947, 11165), (2065, 10527), (2233, 9735), (2541, 8555), (3045, 7139), (3245, 6699), (3509, 6195), (4235, 5133), (4543, 4785)]