21911032

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{179}}^1$

素因数の和:316

約数の個数: 64

約数和(自身を含む): 48988800

約数和(自身を除く): 27077768

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 107, 143, 179, 214, 286, 358, 428, 572, 716, 856, 1144, 1177, 1391, 1432, 1969, 2327, 2354, 2782, 3938, 4654, 4708, 5564, 7876, 9308, 9416, 11128, 15301, 15752, 18616, 19153, 25597, 30602, 38306, 51194, 61204, 76612, 102388, 122408, 153224, 204776, 210683, 248989, 421366, 497978, 842732, 995956, 1685464, 1991912, 2738879, 5477758, 10955516, 21911032]

約数ペア:

[(1, 21911032), (2, 10955516), (4, 5477758), (8, 2738879), (11, 1991912), (13, 1685464), (22, 995956), (26, 842732), (44, 497978), (52, 421366), (88, 248989), (104, 210683), (107, 204776), (143, 153224), (179, 122408), (214, 102388), (286, 76612), (358, 61204), (428, 51194), (572, 38306), (716, 30602), (856, 25597), (1144, 19153), (1177, 18616), (1391, 15752), (1432, 15301), (1969, 11128), (2327, 9416), (2354, 9308), (2782, 7876), (3938, 5564), (4654, 4708)]