251382387

素因数分解:

$3^1\times {\mathrm{23}}^3\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:240

約数の個数: 32

約数和(自身を含む): 359009280

約数和(自身を除く): 107626893

約数列:

[1, 3, 23, 69, 71, 97, 213, 291, 529, 1587, 1633, 2231, 4899, 6693, 6887, 12167, 20661, 36501, 37559, 51313, 112677, 153939, 158401, 475203, 863857, 1180199, 2591571, 3540597, 3643223, 10929669, 83794129, 251382387]

約数ペア:

[(1, 251382387), (3, 83794129), (23, 10929669), (69, 3643223), (71, 3540597), (97, 2591571), (213, 1180199), (291, 863857), (529, 475203), (1587, 158401), (1633, 153939), (2231, 112677), (4899, 51313), (6693, 37559), (6887, 36501), (12167, 20661)]