20085381.000000000

素因数分解:

$3^1\times 5^1\times {\mathrm{1913}}^1\times {\mathrm{4177}}^1$

素因数の和:6098

約数の個数: 16

約数和(自身を含む): 191920608

約数和(自身を除く): 72061593

約数列:

[1, 3, 5, 15, 1913, 4177, 5739, 9565, 12531, 20885, 28695, 62655, 7990601, 23971803, 39953005, 119859015]

約数ペア:

[(1, 119859015), (3, 39953005), (5, 23971803), (15, 7990601), (1913, 62655), (4177, 28695), (5739, 20885), (9565, 12531)]