21208468

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{1163}}^1$

素因数の和:1311

約数の個数: 24

約数和(自身を含む): 38328192

約数和(自身を除く): 17119724

約数列:

[1, 2, 4, 47, 94, 97, 188, 194, 388, 1163, 2326, 4559, 4652, 9118, 18236, 54661, 109322, 112811, 218644, 225622, 451244, 5302117, 10604234, 21208468]

約数ペア:

[(1, 21208468), (2, 10604234), (4, 5302117), (47, 451244), (94, 225622), (97, 218644), (188, 112811), (194, 109322), (388, 54661), (1163, 18236), (2326, 9118), (4559, 4652)]