26728947

素因数分解:

$3^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:142

約数の個数: 80

約数和(自身を含む): 50181120

約数和(自身を除く): 23452173

約数列:

[1, 3, 7, 9, 17, 21, 27, 47, 51, 59, 63, 81, 119, 141, 153, 177, 189, 329, 357, 413, 423, 459, 531, 567, 799, 987, 1003, 1071, 1239, 1269, 1377, 1593, 2397, 2773, 2961, 3009, 3213, 3717, 3807, 4779, 5593, 7021, 7191, 8319, 8883, 9027, 9639, 11151, 16779, 19411, 21063, 21573, 24957, 26649, 27081, 33453, 47141, 50337, 58233, 63189, 64719, 74871, 81243, 141423, 151011, 174699, 189567, 224613, 329987, 424269, 453033, 524097, 568701, 989961, 1272807, 1572291, 2969883, 3818421, 8909649, 26728947]

約数ペア:

[(1, 26728947), (3, 8909649), (7, 3818421), (9, 2969883), (17, 1572291), (21, 1272807), (27, 989961), (47, 568701), (51, 524097), (59, 453033), (63, 424269), (81, 329987), (119, 224613), (141, 189567), (153, 174699), (177, 151011), (189, 141423), (329, 81243), (357, 74871), (413, 64719), (423, 63189), (459, 58233), (531, 50337), (567, 47141), (799, 33453), (987, 27081), (1003, 26649), (1071, 24957), (1239, 21573), (1269, 21063), (1377, 19411), (1593, 16779), (2397, 11151), (2773, 9639), (2961, 9027), (3009, 8883), (3213, 8319), (3717, 7191), (3807, 7021), (4779, 5593)]