221232388

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{80273}}^1$

素因数の和:80343

約数の個数: 24

約数和(自身を含む): 424810008

約数和(自身を除く): 203577620

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 212, 689, 1378, 2756, 80273, 160546, 321092, 1043549, 2087098, 4174196, 4254469, 8508938, 17017876, 55308097, 110616194, 221232388]

約数ペア:

[(1, 221232388), (2, 110616194), (4, 55308097), (13, 17017876), (26, 8508938), (52, 4254469), (53, 4174196), (106, 2087098), (212, 1043549), (689, 321092), (1378, 160546), (2756, 80273)]