20512172349

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{881}}^1\times {\mathrm{27817}}^1$

素因数の和:28738

約数の個数: 32

約数和(自身を含む): 31405409280

約数和(自身を除く): 10893236931

約数列:

[1, 3, 9, 27, 31, 93, 279, 837, 881, 2643, 7929, 23787, 27311, 27817, 81933, 83451, 245799, 250353, 737397, 751059, 862327, 2586981, 7760943, 23282829, 24506777, 73520331, 220560993, 661682979, 759710087, 2279130261, 6837390783, 20512172349]

約数ペア:

[(1, 20512172349), (3, 6837390783), (9, 2279130261), (27, 759710087), (31, 661682979), (93, 220560993), (279, 73520331), (837, 24506777), (881, 23282829), (2643, 7760943), (7929, 2586981), (23787, 862327), (27311, 751059), (27817, 737397), (81933, 250353), (83451, 245799)]