20873788

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{563}}^1$

素因数の和:634

約数の個数: 48

約数和(自身を含む): 42448896

約数和(自身を除く): 21575108

約数列:

[1, 2, 4, 13, 23, 26, 31, 46, 52, 62, 92, 124, 299, 403, 563, 598, 713, 806, 1126, 1196, 1426, 1612, 2252, 2852, 7319, 9269, 12949, 14638, 17453, 18538, 25898, 29276, 34906, 37076, 51796, 69812, 168337, 226889, 336674, 401419, 453778, 673348, 802838, 907556, 1605676, 5218447, 10436894, 20873788]

約数ペア:

[(1, 20873788), (2, 10436894), (4, 5218447), (13, 1605676), (23, 907556), (26, 802838), (31, 673348), (46, 453778), (52, 401419), (62, 336674), (92, 226889), (124, 168337), (299, 69812), (403, 51796), (563, 37076), (598, 34906), (713, 29276), (806, 25898), (1126, 18538), (1196, 17453), (1426, 14638), (1612, 12949), (2252, 9269), (2852, 7319)]