20937315

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{199403}}^1$

素因数の和:199418

約数の個数: 16

約数和(自身を含む): 38285568

約数和(自身を除く): 17348253

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 199403, 598209, 997015, 1395821, 2991045, 4187463, 6979105, 20937315]

約数ペア:

[(1, 20937315), (3, 6979105), (5, 4187463), (7, 2991045), (15, 1395821), (21, 997015), (35, 598209), (105, 199403)]