21778824

素因数分解:

$2^3\times 3^1\times {\mathrm{71}}^1\times {\mathrm{12781}}^1$

素因数の和:12861

約数の個数: 32

約数和(自身を含む): 55218240

約数和(自身を除く): 33439416

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 71, 142, 213, 284, 426, 568, 852, 1704, 12781, 25562, 38343, 51124, 76686, 102248, 153372, 306744, 907451, 1814902, 2722353, 3629804, 5444706, 7259608, 10889412, 21778824]

約数ペア:

[(1, 21778824), (2, 10889412), (3, 7259608), (4, 5444706), (6, 3629804), (8, 2722353), (12, 1814902), (24, 907451), (71, 306744), (142, 153372), (213, 102248), (284, 76686), (426, 51124), (568, 38343), (852, 25562), (1704, 12781)]