21866636

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{45179}}^1$

素因数の和:45205

約数の個数: 18

約数和(自身を含む): 42062580

約数和(自身を除く): 20195944

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 45179, 90358, 180716, 496969, 993938, 1987876, 5466659, 10933318, 21866636]

約数ペア:

[(1, 21866636), (2, 10933318), (4, 5466659), (11, 1987876), (22, 993938), (44, 496969), (121, 180716), (242, 90358), (484, 45179)]