20745123

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{26699}}^1$

素因数の和:26746

約数の個数: 16

約数和(自身を含む): 32467200

約数和(自身を除く): 11722077

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 26699, 80097, 186893, 560679, 987863, 2963589, 6915041, 20745123]

約数ペア:

[(1, 20745123), (3, 6915041), (7, 2963589), (21, 987863), (37, 560679), (111, 186893), (259, 80097), (777, 26699)]