21217092

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{491}}^1$

素因数の和:788

約数の個数: 48

約数和(自身を含む): 53616192

約数和(自身を除く): 32399100

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 277, 491, 554, 831, 982, 1108, 1473, 1662, 1964, 2946, 3324, 3601, 5892, 6383, 7202, 10803, 12766, 14404, 19149, 21606, 25532, 38298, 43212, 76596, 136007, 272014, 408021, 544028, 816042, 1632084, 1768091, 3536182, 5304273, 7072364, 10608546, 21217092]

約数ペア:

[(1, 21217092), (2, 10608546), (3, 7072364), (4, 5304273), (6, 3536182), (12, 1768091), (13, 1632084), (26, 816042), (39, 544028), (52, 408021), (78, 272014), (156, 136007), (277, 76596), (491, 43212), (554, 38298), (831, 25532), (982, 21606), (1108, 19149), (1473, 14404), (1662, 12766), (1964, 10803), (2946, 7202), (3324, 6383), (3601, 5892)]