20992515

素因数分解:

$3^1\times 5^1\times {\mathrm{907}}^1\times {\mathrm{1543}}^1$

素因数の和:2458

約数の個数: 16

約数和(自身を含む): 33646848

約数和(自身を除く): 12654333

約数列:

[1, 3, 5, 15, 907, 1543, 2721, 4535, 4629, 7715, 13605, 23145, 1399501, 4198503, 6997505, 20992515]

約数ペア:

[(1, 20992515), (3, 6997505), (5, 4198503), (15, 1399501), (907, 23145), (1543, 13605), (2721, 7715), (4535, 4629)]