21082448

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{77509}}^1$

素因数の和:77534

約数の個数: 20

約数和(自身を含む): 43250580

約数和(自身を除く): 22168132

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 77509, 155018, 310036, 620072, 1240144, 1317653, 2635306, 5270612, 10541224, 21082448]

約数ペア:

[(1, 21082448), (2, 10541224), (4, 5270612), (8, 2635306), (16, 1317653), (17, 1240144), (34, 620072), (68, 310036), (136, 155018), (272, 77509)]