21450044

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{9949}}^1$

素因数の和:9978

約数の個数: 36

約数和(自身を含む): 47640600

約数和(自身を除く): 26190556

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 2156, 9949, 19898, 39796, 69643, 109439, 139286, 218878, 278572, 437756, 487501, 766073, 975002, 1532146, 1950004, 3064292, 5362511, 10725022, 21450044]

約数ペア:

[(1, 21450044), (2, 10725022), (4, 5362511), (7, 3064292), (11, 1950004), (14, 1532146), (22, 975002), (28, 766073), (44, 487501), (49, 437756), (77, 278572), (98, 218878), (154, 139286), (196, 109439), (308, 69643), (539, 39796), (1078, 19898), (2156, 9949)]