21058362

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2903}}^1$

素因数の和:2955

約数の個数: 48

約数和(自身を含む): 50738688

約数和(自身を除く): 29680326

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 31, 39, 62, 78, 93, 117, 186, 234, 279, 403, 558, 806, 1209, 2418, 2903, 3627, 5806, 7254, 8709, 17418, 26127, 37739, 52254, 75478, 89993, 113217, 179986, 226434, 269979, 339651, 539958, 679302, 809937, 1169909, 1619874, 2339818, 3509727, 7019454, 10529181, 21058362]

約数ペア:

[(1, 21058362), (2, 10529181), (3, 7019454), (6, 3509727), (9, 2339818), (13, 1619874), (18, 1169909), (26, 809937), (31, 679302), (39, 539958), (62, 339651), (78, 269979), (93, 226434), (117, 179986), (186, 113217), (234, 89993), (279, 75478), (403, 52254), (558, 37739), (806, 26127), (1209, 17418), (2418, 8709), (2903, 7254), (3627, 5806)]