21000388604

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{3920909}}^1$

素因数の和:3921029

約数の個数: 24

約数和(自身を含む): 39961914720

約数和(自身を除く): 18961526116

約数列:

[1, 2, 4, 13, 26, 52, 103, 206, 412, 1339, 2678, 5356, 3920909, 7841818, 15683636, 50971817, 101943634, 203887268, 403853627, 807707254, 1615414508, 5250097151, 10500194302, 21000388604]

約数ペア:

[(1, 21000388604), (2, 10500194302), (4, 5250097151), (13, 1615414508), (26, 807707254), (52, 403853627), (103, 203887268), (206, 101943634), (412, 50971817), (1339, 15683636), (2678, 7841818), (5356, 3920909)]