21850160

素因数分解:

$2^4\times 5^1\times {\mathrm{273127}}^1$

素因数の和:273140

約数の個数: 20

約数和(自身を含む): 50801808

約数和(自身を除く): 28951648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 273127, 546254, 1092508, 1365635, 2185016, 2731270, 4370032, 5462540, 10925080, 21850160]

約数ペア:

[(1, 21850160), (2, 10925080), (4, 5462540), (5, 4370032), (8, 2731270), (10, 2185016), (16, 1365635), (20, 1092508), (40, 546254), (80, 273127)]