28125531

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{26261}}^1$

素因数の和:26291

約数の個数: 24

約数和(自身を含む): 49162464

約数和(自身を除く): 21036933

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 26261, 78783, 183827, 236349, 446437, 551481, 1339311, 1654443, 3125059, 4017933, 9375177, 28125531]

約数ペア:

[(1, 28125531), (3, 9375177), (7, 4017933), (9, 3125059), (17, 1654443), (21, 1339311), (51, 551481), (63, 446437), (119, 236349), (153, 183827), (357, 78783), (1071, 26261)]