19856615

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{1061}}^1$

素因数の和:1282

約数の個数: 16

約数和(自身を含む): 25233120

約数和(自身を除く): 5376505

約数列:

[1, 5, 19, 95, 197, 985, 1061, 3743, 5305, 18715, 20159, 100795, 209017, 1045085, 3971323, 19856615]

約数ペア:

[(1, 19856615), (5, 3971323), (19, 1045085), (95, 209017), (197, 100795), (985, 20159), (1061, 18715), (3743, 5305)]