21424880

素因数分解:

$2^4\times 5^1\times {\mathrm{267811}}^1$

素因数の和:267824

約数の個数: 20

約数和(自身を含む): 49813032

約数和(自身を除く): 28388152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 267811, 535622, 1071244, 1339055, 2142488, 2678110, 4284976, 5356220, 10712440, 21424880]

約数ペア:

[(1, 21424880), (2, 10712440), (4, 5356220), (5, 4284976), (8, 2678110), (10, 2142488), (16, 1339055), (20, 1071244), (40, 535622), (80, 267811)]