208713043

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{431}}^1$

素因数の和:799

約数の個数: 32

約数和(自身を含む): 275374080

約数和(自身を除く): 66661037

約数列:

[1, 7, 11, 19, 77, 133, 209, 331, 431, 1463, 2317, 3017, 3641, 4741, 6289, 8189, 25487, 33187, 44023, 57323, 69179, 90079, 142661, 484253, 630553, 998627, 1569271, 2710559, 10984897, 18973913, 29816149, 208713043]

約数ペア:

[(1, 208713043), (7, 29816149), (11, 18973913), (19, 10984897), (77, 2710559), (133, 1569271), (209, 998627), (331, 630553), (431, 484253), (1463, 142661), (2317, 90079), (3017, 69179), (3641, 57323), (4741, 44023), (6289, 33187), (8189, 25487)]