20120205

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{191621}}^1$

素因数の和:191636

約数の個数: 16

約数和(自身を含む): 36791424

約数和(自身を除く): 16671219

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 191621, 574863, 958105, 1341347, 2874315, 4024041, 6706735, 20120205]

約数ペア:

[(1, 20120205), (3, 6706735), (5, 4024041), (7, 2874315), (15, 1341347), (21, 958105), (35, 574863), (105, 191621)]