21363568

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{28409}}^1$

素因数の和:28464

約数の個数: 20

約数和(自身を含む): 42274080

約数和(自身を除く): 20910512

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 28409, 56818, 113636, 227272, 454544, 1335223, 2670446, 5340892, 10681784, 21363568]

約数ペア:

[(1, 21363568), (2, 10681784), (4, 5340892), (8, 2670446), (16, 1335223), (47, 454544), (94, 227272), (188, 113636), (376, 56818), (752, 28409)]