20926891

素因数分解:

${\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{271}}^1$

素因数の和:402

約数の個数: 16

約数和(自身を含む): 22560768

約数和(自身を除く): 1633877

約数列:

[1, 31, 47, 53, 271, 1457, 1643, 2491, 8401, 12737, 14363, 77221, 394847, 445253, 675061, 20926891]

約数ペア:

[(1, 20926891), (31, 675061), (47, 445253), (53, 394847), (271, 77221), (1457, 14363), (1643, 12737), (2491, 8401)]