21337533

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1$

素因数の和:291

約数の個数: 64

約数和(自身を含む): 39744000

約数和(自身を除く): 18406467

約数列:

[1, 3, 7, 9, 17, 21, 27, 29, 51, 63, 87, 119, 153, 189, 203, 229, 261, 357, 459, 493, 609, 687, 783, 1071, 1479, 1603, 1827, 2061, 3213, 3451, 3893, 4437, 4809, 5481, 6183, 6641, 10353, 11679, 13311, 14427, 19923, 27251, 31059, 35037, 43281, 46487, 59769, 81753, 93177, 105111, 112897, 139461, 179307, 245259, 338691, 418383, 735777, 790279, 1016073, 1255149, 2370837, 3048219, 7112511, 21337533]

約数ペア:

[(1, 21337533), (3, 7112511), (7, 3048219), (9, 2370837), (17, 1255149), (21, 1016073), (27, 790279), (29, 735777), (51, 418383), (63, 338691), (87, 245259), (119, 179307), (153, 139461), (189, 112897), (203, 105111), (229, 93177), (261, 81753), (357, 59769), (459, 46487), (493, 43281), (609, 35037), (687, 31059), (783, 27251), (1071, 19923), (1479, 14427), (1603, 13311), (1827, 11679), (2061, 10353), (3213, 6641), (3451, 6183), (3893, 5481), (4437, 4809)]