20720711

素因数分解:

${\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{617}}^1$

素因数の和:742

約数の個数: 16

約数和(自身を含む): 23493888

約数和(自身を除く): 2773177

約数列:

[1, 11, 43, 71, 473, 617, 781, 3053, 6787, 26531, 33583, 43807, 291841, 481877, 1883701, 20720711]

約数ペア:

[(1, 20720711), (11, 1883701), (43, 481877), (71, 291841), (473, 43807), (617, 33583), (781, 26531), (3053, 6787)]