21183043

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{373}}^1$

素因数の和:467

約数の個数: 24

約数和(自身を含む): 26434320

約数和(自身を除く): 5251277

約数列:

[1, 7, 19, 49, 61, 133, 373, 427, 931, 1159, 2611, 2989, 7087, 8113, 18277, 22753, 49609, 56791, 159271, 347263, 432307, 1114897, 3026149, 21183043]

約数ペア:

[(1, 21183043), (7, 3026149), (19, 1114897), (49, 432307), (61, 347263), (133, 159271), (373, 56791), (427, 49609), (931, 22753), (1159, 18277), (2611, 8113), (2989, 7087)]