208545953

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{509}}^1$

素因数の和:857

約数の個数: 32

約数和(自身を含む): 276721920

約数和(自身を除く): 68175967

約数列:

[1, 7, 11, 17, 77, 119, 187, 313, 509, 1309, 2191, 3443, 3563, 5321, 5599, 8653, 24101, 37247, 39193, 58531, 60571, 95183, 159317, 409717, 666281, 1115219, 1752487, 2708389, 12267409, 18958723, 29792279, 208545953]

約数ペア:

[(1, 208545953), (7, 29792279), (11, 18958723), (17, 12267409), (77, 2708389), (119, 1752487), (187, 1115219), (313, 666281), (509, 409717), (1309, 159317), (2191, 95183), (3443, 60571), (3563, 58531), (5321, 39193), (5599, 37247), (8653, 24101)]