21245363

素因数分解:

${\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{643}}^1$

素因数の和:746

約数の個数: 16

約数和(自身を含む): 23493120

約数和(自身を除く): 2247757

約数列:

[1, 19, 37, 47, 643, 703, 893, 1739, 12217, 23791, 30221, 33041, 452029, 574199, 1118177, 21245363]

約数ペア:

[(1, 21245363), (19, 1118177), (37, 574199), (47, 452029), (643, 33041), (703, 30221), (893, 23791), (1739, 12217)]