16986475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3251}}^1$

素因数の和:3291

約数の個数: 24

約数和(自身を含む): 24194880

約数和(自身を除く): 7208405

約数列:

[1, 5, 11, 19, 25, 55, 95, 209, 275, 475, 1045, 3251, 5225, 16255, 35761, 61769, 81275, 178805, 308845, 679459, 894025, 1544225, 3397295, 16986475]

約数ペア:

[(1, 16986475), (5, 3397295), (11, 1544225), (19, 894025), (25, 679459), (55, 308845), (95, 178805), (209, 81275), (275, 61769), (475, 35761), (1045, 16255), (3251, 5225)]