21909760

素因数分解:

$2^8\times 5^1\times {\mathrm{17117}}^1$

素因数の和:17138

約数の個数: 36

約数和(自身を含む): 52483788

約数和(自身を除く): 30574028

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 17117, 34234, 68468, 85585, 136936, 171170, 273872, 342340, 547744, 684680, 1095488, 1369360, 2190976, 2738720, 4381952, 5477440, 10954880, 21909760]

約数ペア:

[(1, 21909760), (2, 10954880), (4, 5477440), (5, 4381952), (8, 2738720), (10, 2190976), (16, 1369360), (20, 1095488), (32, 684680), (40, 547744), (64, 342340), (80, 273872), (128, 171170), (160, 136936), (256, 85585), (320, 68468), (640, 34234), (1280, 17117)]