21712834

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{79}}^1$

素因数の和:167

約数の個数: 48

約数和(自身を含む): 40037760

約数和(自身を除く): 18324926

約数列:

[1, 2, 11, 13, 22, 26, 31, 62, 79, 143, 158, 286, 341, 403, 682, 806, 869, 961, 1027, 1738, 1922, 2054, 2449, 4433, 4898, 8866, 10571, 11297, 12493, 21142, 22594, 24986, 26939, 31837, 53878, 63674, 75919, 137423, 151838, 274846, 350207, 700414, 835109, 986947, 1670218, 1973894, 10856417, 21712834]

約数ペア:

[(1, 21712834), (2, 10856417), (11, 1973894), (13, 1670218), (22, 986947), (26, 835109), (31, 700414), (62, 350207), (79, 274846), (143, 151838), (158, 137423), (286, 75919), (341, 63674), (403, 53878), (682, 31837), (806, 26939), (869, 24986), (961, 22594), (1027, 21142), (1738, 12493), (1922, 11297), (2054, 10571), (2449, 8866), (4433, 4898)]