211883903

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{1031}}^1$

素因数の和:1223

約数の個数: 32

約数和(自身を含む): 281760768

約数和(自身を除く): 69876865

約数列:

[1, 7, 11, 17, 77, 119, 157, 187, 1031, 1099, 1309, 1727, 2669, 7217, 11341, 12089, 17527, 18683, 29359, 79387, 122689, 161867, 192797, 205513, 1133069, 1349579, 1780537, 2751739, 12463759, 19262173, 30269129, 211883903]

約数ペア:

[(1, 211883903), (7, 30269129), (11, 19262173), (17, 12463759), (77, 2751739), (119, 1780537), (157, 1349579), (187, 1133069), (1031, 205513), (1099, 192797), (1309, 161867), (1727, 122689), (2669, 79387), (7217, 29359), (11341, 18683), (12089, 17527)]