20747272

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28499}}^1$

素因数の和:28525

約数の個数: 32

約数和(自身を含む): 47880000

約数和(自身を除く): 27132728

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 28499, 56998, 113996, 199493, 227992, 370487, 398986, 740974, 797972, 1481948, 1595944, 2593409, 2963896, 5186818, 10373636, 20747272]

約数ペア:

[(1, 20747272), (2, 10373636), (4, 5186818), (7, 2963896), (8, 2593409), (13, 1595944), (14, 1481948), (26, 797972), (28, 740974), (52, 398986), (56, 370487), (91, 227992), (104, 199493), (182, 113996), (364, 56998), (728, 28499)]