20738715

素因数分解:

$3^1\times 5^1\times {\mathrm{809}}^1\times {\mathrm{1709}}^1$

素因数の和:2526

約数の個数: 16

約数和(自身を含む): 33242400

約数和(自身を除く): 12503685

約数列:

[1, 3, 5, 15, 809, 1709, 2427, 4045, 5127, 8545, 12135, 25635, 1382581, 4147743, 6912905, 20738715]

約数ペア:

[(1, 20738715), (3, 6912905), (5, 4147743), (15, 1382581), (809, 25635), (1709, 12135), (2427, 8545), (4045, 5127)]