20988054

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1297}}^1$

素因数の和:1365

約数の個数: 48

約数和(自身を含む): 48597120

約数和(自身を除く): 27609066

約数列:

[1, 2, 3, 6, 9, 18, 29, 31, 58, 62, 87, 93, 174, 186, 261, 279, 522, 558, 899, 1297, 1798, 2594, 2697, 3891, 5394, 7782, 8091, 11673, 16182, 23346, 37613, 40207, 75226, 80414, 112839, 120621, 225678, 241242, 338517, 361863, 677034, 723726, 1166003, 2332006, 3498009, 6996018, 10494027, 20988054]

約数ペア:

[(1, 20988054), (2, 10494027), (3, 6996018), (6, 3498009), (9, 2332006), (18, 1166003), (29, 723726), (31, 677034), (58, 361863), (62, 338517), (87, 241242), (93, 225678), (174, 120621), (186, 112839), (261, 80414), (279, 75226), (522, 40207), (558, 37613), (899, 23346), (1297, 16182), (1798, 11673), (2594, 8091), (2697, 7782), (3891, 5394)]