21217471

素因数分解:

${\mathrm{11}}^3\times {\mathrm{19}}^1\times {\mathrm{839}}^1$

素因数の和:891

約数の個数: 16

約数和(自身を含む): 24595200

約数和(自身を除く): 3377729

約数列:

[1, 11, 19, 121, 209, 839, 1331, 2299, 9229, 15941, 25289, 101519, 175351, 1116709, 1928861, 21217471]

約数ペア:

[(1, 21217471), (11, 1928861), (19, 1116709), (121, 175351), (209, 101519), (839, 25289), (1331, 15941), (2299, 9229)]