218437129

素因数分解:

${\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:349

約数の個数: 24

約数和(自身を含む): 241401600

約数和(自身を除く): 22964471

約数列:

[1, 19, 31, 131, 149, 361, 589, 2489, 2831, 4061, 4619, 11191, 19519, 47291, 53789, 77159, 87761, 370861, 605089, 1466021, 1667459, 7046359, 11496691, 218437129]

約数ペア:

[(1, 218437129), (19, 11496691), (31, 7046359), (131, 1667459), (149, 1466021), (361, 605089), (589, 370861), (2489, 87761), (2831, 77159), (4061, 53789), (4619, 47291), (11191, 19519)]