19103161

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 25214976

約数和(自身を除く): 6111815

約数列:

[1, 7, 11, 31, 53, 77, 151, 217, 341, 371, 583, 1057, 1643, 1661, 2387, 4081, 4681, 8003, 11501, 11627, 18073, 32767, 51491, 56021, 88033, 126511, 248093, 360437, 616231, 1736651, 2729023, 19103161]

約数ペア:

[(1, 19103161), (7, 2729023), (11, 1736651), (31, 616231), (53, 360437), (77, 248093), (151, 126511), (217, 88033), (341, 56021), (371, 51491), (583, 32767), (1057, 18073), (1643, 11627), (1661, 11501), (2387, 8003), (4081, 4681)]