20726289

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{449}}^1$

素因数の和:701

約数の個数: 24

約数和(自身を含む): 31449600

約数和(自身を除く): 10723311

約数列:

[1, 3, 9, 23, 69, 207, 223, 449, 669, 1347, 2007, 4041, 5129, 10327, 15387, 30981, 46161, 92943, 100127, 300381, 901143, 2302921, 6908763, 20726289]

約数ペア:

[(1, 20726289), (3, 6908763), (9, 2302921), (23, 901143), (69, 300381), (207, 100127), (223, 92943), (449, 46161), (669, 30981), (1347, 15387), (2007, 10327), (4041, 5129)]