18188793

素因数分解:

$3^5\times 7^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1$

素因数の和:93

約数の個数: 72

約数和(自身を含む): 33971392

約数和(自身を除く): 15782599

約数列:

[1, 3, 7, 9, 17, 21, 27, 37, 51, 63, 81, 111, 119, 153, 189, 243, 259, 289, 333, 357, 459, 567, 629, 777, 867, 999, 1071, 1377, 1701, 1887, 2023, 2331, 2601, 2997, 3213, 4131, 4403, 5661, 6069, 6993, 7803, 8991, 9639, 10693, 13209, 16983, 18207, 20979, 23409, 28917, 32079, 39627, 50949, 54621, 62937, 70227, 74851, 96237, 118881, 152847, 163863, 224553, 288711, 356643, 491589, 673659, 866133, 1069929, 2020977, 2598399, 6062931, 18188793]

約数ペア:

[(1, 18188793), (3, 6062931), (7, 2598399), (9, 2020977), (17, 1069929), (21, 866133), (27, 673659), (37, 491589), (51, 356643), (63, 288711), (81, 224553), (111, 163863), (119, 152847), (153, 118881), (189, 96237), (243, 74851), (259, 70227), (289, 62937), (333, 54621), (357, 50949), (459, 39627), (567, 32079), (629, 28917), (777, 23409), (867, 20979), (999, 18207), (1071, 16983), (1377, 13209), (1701, 10693), (1887, 9639), (2023, 8991), (2331, 7803), (2601, 6993), (2997, 6069), (3213, 5661), (4131, 4403)]