21130254

素因数分解:

$2^1\times 3^3\times {\mathrm{391301}}^1$

素因数の和:391312

約数の個数: 16

約数和(自身を含む): 46956240

約数和(自身を除く): 25825986

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 391301, 782602, 1173903, 2347806, 3521709, 7043418, 10565127, 21130254]

約数ペア:

[(1, 21130254), (2, 10565127), (3, 7043418), (6, 3521709), (9, 2347806), (18, 1173903), (27, 782602), (54, 391301)]