21619208

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{207877}}^1$

素因数の和:207896

約数の個数: 16

約数和(自身を含む): 43654380

約数和(自身を除く): 22035172

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 207877, 415754, 831508, 1663016, 2702401, 5404802, 10809604, 21619208]

約数ペア:

[(1, 21619208), (2, 10809604), (4, 5404802), (8, 2702401), (13, 1663016), (26, 831508), (52, 415754), (104, 207877)]