21240816

素因数分解:

$2^4\times 3^1\times {\mathrm{442517}}^1$

素因数の和:442528

約数の個数: 20

約数和(自身を含む): 54872232

約数和(自身を除く): 33631416

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 442517, 885034, 1327551, 1770068, 2655102, 3540136, 5310204, 7080272, 10620408, 21240816]

約数ペア:

[(1, 21240816), (2, 10620408), (3, 7080272), (4, 5310204), (6, 3540136), (8, 2655102), (12, 1770068), (16, 1327551), (24, 885034), (48, 442517)]