221547963

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{115933}}^1$

素因数の和:115963

約数の個数: 24

約数和(自身を含む): 370061328

約数和(自身を除く): 148513365

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 115933, 347799, 811531, 1507129, 2434593, 4521387, 5680717, 10549903, 17042151, 31649709, 73849321, 221547963]

約数ペア:

[(1, 221547963), (3, 73849321), (7, 31649709), (13, 17042151), (21, 10549903), (39, 5680717), (49, 4521387), (91, 2434593), (147, 1507129), (273, 811531), (637, 347799), (1911, 115933)]