21051684

素因数分解:

$2^2\times 3^3\times {\mathrm{421}}^1\times {\mathrm{463}}^1$

素因数の和:897

約数の個数: 48

約数和(自身を含む): 54826240

約数和(自身を除く): 33774556

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 421, 463, 842, 926, 1263, 1389, 1684, 1852, 2526, 2778, 3789, 4167, 5052, 5556, 7578, 8334, 11367, 12501, 15156, 16668, 22734, 25002, 45468, 50004, 194923, 389846, 584769, 779692, 1169538, 1754307, 2339076, 3508614, 5262921, 7017228, 10525842, 21051684]

約数ペア:

[(1, 21051684), (2, 10525842), (3, 7017228), (4, 5262921), (6, 3508614), (9, 2339076), (12, 1754307), (18, 1169538), (27, 779692), (36, 584769), (54, 389846), (108, 194923), (421, 50004), (463, 45468), (842, 25002), (926, 22734), (1263, 16668), (1389, 15156), (1684, 12501), (1852, 11367), (2526, 8334), (2778, 7578), (3789, 5556), (4167, 5052)]