21057816

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67493}}^1$

素因数の和:67515

約数の個数: 32

約数和(自身を含む): 56694960

約数和(自身を除く): 35637144

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 67493, 134986, 202479, 269972, 404958, 539944, 809916, 877409, 1619832, 1754818, 2632227, 3509636, 5264454, 7019272, 10528908, 21057816]

約数ペア:

[(1, 21057816), (2, 10528908), (3, 7019272), (4, 5264454), (6, 3509636), (8, 2632227), (12, 1754818), (13, 1619832), (24, 877409), (26, 809916), (39, 539944), (52, 404958), (78, 269972), (104, 202479), (156, 134986), (312, 67493)]