21890296

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{271}}^1\times {\mathrm{439}}^1$

素因数の和:739

約数の個数: 32

約数和(自身を含む): 43084800

約数和(自身を除く): 21194504

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 271, 439, 542, 878, 1084, 1756, 2168, 3512, 6233, 10097, 12466, 20194, 24932, 40388, 49864, 80776, 118969, 237938, 475876, 951752, 2736287, 5472574, 10945148, 21890296]

約数ペア:

[(1, 21890296), (2, 10945148), (4, 5472574), (8, 2736287), (23, 951752), (46, 475876), (92, 237938), (184, 118969), (271, 80776), (439, 49864), (542, 40388), (878, 24932), (1084, 20194), (1756, 12466), (2168, 10097), (3512, 6233)]