21000587178

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1\times {\mathrm{10337}}^1$

素因数の和:10683

約数の個数: 64

約数和(自身を含む): 45017441280

約数和(自身を除く): 24016854102

約数列:

[1, 2, 3, 6, 19, 38, 57, 71, 114, 142, 213, 251, 426, 502, 753, 1349, 1506, 2698, 4047, 4769, 8094, 9538, 10337, 14307, 17821, 20674, 28614, 31011, 35642, 53463, 62022, 106926, 196403, 338599, 392806, 589209, 677198, 733927, 1015797, 1178418, 1467854, 2031594, 2201781, 2594587, 4403562, 5189174, 7783761, 13944613, 15567522, 27889226, 41833839, 49297153, 83667678, 98594306, 147891459, 184215677, 295782918, 368431354, 552647031, 1105294062, 3500097863, 7000195726, 10500293589, 21000587178]

約数ペア:

[(1, 21000587178), (2, 10500293589), (3, 7000195726), (6, 3500097863), (19, 1105294062), (38, 552647031), (57, 368431354), (71, 295782918), (114, 184215677), (142, 147891459), (213, 98594306), (251, 83667678), (426, 49297153), (502, 41833839), (753, 27889226), (1349, 15567522), (1506, 13944613), (2698, 7783761), (4047, 5189174), (4769, 4403562), (8094, 2594587), (9538, 2201781), (10337, 2031594), (14307, 1467854), (17821, 1178418), (20674, 1015797), (28614, 733927), (31011, 677198), (35642, 589209), (53463, 392806), (62022, 338599), (106926, 196403)]