20358519

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{293}}^1$

素因数の和:391

約数の個数: 32

約数和(自身を含む): 30481920

約数和(自身を除く): 10123401

約数列:

[1, 3, 19, 23, 53, 57, 69, 159, 293, 437, 879, 1007, 1219, 1311, 3021, 3657, 5567, 6739, 15529, 16701, 20217, 23161, 46587, 69483, 128041, 295051, 357167, 384123, 885153, 1071501, 6786173, 20358519]

約数ペア:

[(1, 20358519), (3, 6786173), (19, 1071501), (23, 885153), (53, 384123), (57, 357167), (69, 295051), (159, 128041), (293, 69483), (437, 46587), (879, 23161), (1007, 20217), (1219, 16701), (1311, 15529), (3021, 6739), (3657, 5567)]