21641848

素因数分解:

$2^3\times {\mathrm{211}}^1\times {\mathrm{12821}}^1$

素因数の和:13038

約数の個数: 16

約数和(自身を含む): 40773960

約数和(自身を除く): 19132112

約数列:

[1, 2, 4, 8, 211, 422, 844, 1688, 12821, 25642, 51284, 102568, 2705231, 5410462, 10820924, 21641848]

約数ペア:

[(1, 21641848), (2, 10820924), (4, 5410462), (8, 2705231), (211, 102568), (422, 51284), (844, 25642), (1688, 12821)]