20131555887

素因数分解:

$3^9\times {\mathrm{19}}^1\times {\mathrm{53831}}^1$

素因数の和:53877

約数の個数: 40

約数和(自身を含む): 31786719360

約数和(自身を除く): 11655163473

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 243, 513, 729, 1539, 2187, 4617, 6561, 13851, 19683, 41553, 53831, 124659, 161493, 373977, 484479, 1022789, 1453437, 3068367, 4360311, 9205101, 13080933, 27615303, 39242799, 82845909, 117728397, 248537727, 353185191, 745613181, 1059555573, 2236839543, 6710518629, 20131555887]

約数ペア:

[(1, 20131555887), (3, 6710518629), (9, 2236839543), (19, 1059555573), (27, 745613181), (57, 353185191), (81, 248537727), (171, 117728397), (243, 82845909), (513, 39242799), (729, 27615303), (1539, 13080933), (2187, 9205101), (4617, 4360311), (6561, 3068367), (13851, 1453437), (19683, 1022789), (41553, 484479), (53831, 373977), (124659, 161493)]