21240848

素因数分解:

$2^4\times {\mathrm{283}}^1\times {\mathrm{4691}}^1$

素因数の和:4982

約数の個数: 20

約数和(自身を含む): 41308368

約数和(自身を除く): 20067520

約数列:

[1, 2, 4, 8, 16, 283, 566, 1132, 2264, 4528, 4691, 9382, 18764, 37528, 75056, 1327553, 2655106, 5310212, 10620424, 21240848]

約数ペア:

[(1, 21240848), (2, 10620424), (4, 5310212), (8, 2655106), (16, 1327553), (283, 75056), (566, 37528), (1132, 18764), (2264, 9382), (4528, 4691)]