21444085

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{3203}}^1$

素因数の和:3324

約数の個数: 16

約数和(自身を含む): 27990144

約数和(自身を除く): 6546059

約数列:

[1, 5, 13, 65, 103, 515, 1339, 3203, 6695, 16015, 41639, 208195, 329909, 1649545, 4288817, 21444085]

約数ペア:

[(1, 21444085), (5, 4288817), (13, 1649545), (65, 329909), (103, 208195), (515, 41639), (1339, 16015), (3203, 6695)]