21255575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2089}}^1$

素因数の和:2147

約数の個数: 24

約数和(自身を含む): 29544240

約数和(自身を除く): 8288665

約数列:

[1, 5, 11, 25, 37, 55, 185, 275, 407, 925, 2035, 2089, 10175, 10445, 22979, 52225, 77293, 114895, 386465, 574475, 850223, 1932325, 4251115, 21255575]

約数ペア:

[(1, 21255575), (5, 4251115), (11, 1932325), (25, 850223), (37, 574475), (55, 386465), (185, 114895), (275, 77293), (407, 52225), (925, 22979), (2035, 10445), (2089, 10175)]