257538687

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{183041}}^1$

素因数の和:183118

約数の個数: 16

約数和(自身を含む): 398299392

約数和(自身を除く): 140760705

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 183041, 549123, 1281287, 3843861, 12263747, 36791241, 85846229, 257538687]

約数ペア:

[(1, 257538687), (3, 85846229), (7, 36791241), (21, 12263747), (67, 3843861), (201, 1281287), (469, 549123), (1407, 183041)]