21529963

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{463}}^1$

素因数の和:563

約数の個数: 24

約数和(自身を含む): 27400128

約数和(自身を除く): 5870165

約数列:

[1, 7, 13, 49, 73, 91, 463, 511, 637, 949, 3241, 3577, 6019, 6643, 22687, 33799, 42133, 46501, 236593, 294931, 439387, 1656151, 3075709, 21529963]

約数ペア:

[(1, 21529963), (7, 3075709), (13, 1656151), (49, 439387), (73, 294931), (91, 236593), (463, 46501), (511, 42133), (637, 33799), (949, 22687), (3241, 6643), (3577, 6019)]