21052356

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{134951}}^1$

素因数の和:134971

約数の個数: 24

約数和(自身を含む): 52901184

約数和(自身を除く): 31848828

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 134951, 269902, 404853, 539804, 809706, 1619412, 1754363, 3508726, 5263089, 7017452, 10526178, 21052356]

約数ペア:

[(1, 21052356), (2, 10526178), (3, 7017452), (4, 5263089), (6, 3508726), (12, 1754363), (13, 1619412), (26, 809706), (39, 539804), (52, 404853), (78, 269902), (156, 134951)]