21624239

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{409}}^1$

素因数の和:519

約数の個数: 24

約数和(自身を含む): 27483120

約数和(自身を除く): 5858881

約数列:

[1, 7, 13, 49, 83, 91, 409, 581, 637, 1079, 2863, 4067, 5317, 7553, 20041, 33947, 37219, 52871, 237629, 260533, 441311, 1663403, 3089177, 21624239]

約数ペア:

[(1, 21624239), (7, 3089177), (13, 1663403), (49, 441311), (83, 260533), (91, 237629), (409, 52871), (581, 37219), (637, 33947), (1079, 20041), (2863, 7553), (4067, 5317)]