21911084

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{1997}}^1$

素因数の和:2225

約数の個数: 24

約数和(自身を含む): 41510448

約数和(自身を除く): 19599364

約数列:

[1, 2, 4, 13, 26, 52, 211, 422, 844, 1997, 2743, 3994, 5486, 7988, 10972, 25961, 51922, 103844, 421367, 842734, 1685468, 5477771, 10955542, 21911084]

約数ペア:

[(1, 21911084), (2, 10955542), (4, 5477771), (13, 1685468), (26, 842734), (52, 421367), (211, 103844), (422, 51922), (844, 25961), (1997, 10972), (2743, 7988), (3994, 5486)]