20996045397

素因数分解:

$3^5\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{677}}^1$

素因数の和:925

約数の個数: 96

約数和(自身を含む): 34116526080

約数和(自身を除く): 13120480683

約数列:

[1, 3, 9, 23, 27, 31, 69, 81, 93, 179, 207, 243, 279, 537, 621, 677, 713, 837, 1611, 1863, 2031, 2139, 2511, 4117, 4833, 5549, 5589, 6093, 6417, 7533, 12351, 14499, 15571, 16647, 18279, 19251, 20987, 37053, 43497, 46713, 49941, 54837, 57753, 62961, 111159, 121183, 127627, 140139, 149823, 164511, 173259, 188883, 333477, 363549, 382881, 420417, 449469, 482701, 566649, 1000431, 1090647, 1148643, 1261251, 1348407, 1448103, 1699947, 2787209, 3271941, 3445929, 3756673, 3783753, 4344309, 5099841, 8361627, 9815823, 10337787, 11270019, 13032927, 25084881, 29447469, 31013361, 33810057, 39098781, 75254643, 86403479, 101430171, 117296343, 225763929, 259210437, 304290513, 677291787, 777631311, 912871539, 2332893933, 6998681799, 20996045397]

約数ペア:

[(1, 20996045397), (3, 6998681799), (9, 2332893933), (23, 912871539), (27, 777631311), (31, 677291787), (69, 304290513), (81, 259210437), (93, 225763929), (179, 117296343), (207, 101430171), (243, 86403479), (279, 75254643), (537, 39098781), (621, 33810057), (677, 31013361), (713, 29447469), (837, 25084881), (1611, 13032927), (1863, 11270019), (2031, 10337787), (2139, 9815823), (2511, 8361627), (4117, 5099841), (4833, 4344309), (5549, 3783753), (5589, 3756673), (6093, 3445929), (6417, 3271941), (7533, 2787209), (12351, 1699947), (14499, 1448103), (15571, 1348407), (16647, 1261251), (18279, 1148643), (19251, 1090647), (20987, 1000431), (37053, 566649), (43497, 482701), (46713, 449469), (49941, 420417), (54837, 382881), (57753, 363549), (62961, 333477), (111159, 188883), (121183, 173259), (127627, 164511), (140139, 149823)]