20881248

素因数分解:

$2^5\times 3^1\times {\mathrm{443}}^1\times {\mathrm{491}}^1$

素因数の和:947

約数の個数: 48

約数和(自身を含む): 55048896

約数和(自身を除く): 34167648

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 443, 491, 886, 982, 1329, 1473, 1772, 1964, 2658, 2946, 3544, 3928, 5316, 5892, 7088, 7856, 10632, 11784, 14176, 15712, 21264, 23568, 42528, 47136, 217513, 435026, 652539, 870052, 1305078, 1740104, 2610156, 3480208, 5220312, 6960416, 10440624, 20881248]

約数ペア:

[(1, 20881248), (2, 10440624), (3, 6960416), (4, 5220312), (6, 3480208), (8, 2610156), (12, 1740104), (16, 1305078), (24, 870052), (32, 652539), (48, 435026), (96, 217513), (443, 47136), (491, 42528), (886, 23568), (982, 21264), (1329, 15712), (1473, 14176), (1772, 11784), (1964, 10632), (2658, 7856), (2946, 7088), (3544, 5892), (3928, 5316)]