21952040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{49891}}^1$

素因数の和:49913

約数の個数: 32

約数和(自身を含む): 53883360

約数和(自身を除く): 31931320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 49891, 99782, 199564, 249455, 399128, 498910, 548801, 997820, 1097602, 1995640, 2195204, 2744005, 4390408, 5488010, 10976020, 21952040]

約数ペア:

[(1, 21952040), (2, 10976020), (4, 5488010), (5, 4390408), (8, 2744005), (10, 2195204), (11, 1995640), (20, 1097602), (22, 997820), (40, 548801), (44, 498910), (55, 399128), (88, 249455), (110, 199564), (220, 99782), (440, 49891)]