208773729

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{28393}}^1$

素因数の和:28461

約数の個数: 24

約数和(自身を含む): 324827360

約数和(自身を除く): 116053631

約数列:

[1, 3, 9, 19, 43, 57, 129, 171, 387, 817, 2451, 7353, 28393, 85179, 255537, 539467, 1220899, 1618401, 3662697, 4855203, 10988091, 23197081, 69591243, 208773729]

約数ペア:

[(1, 208773729), (3, 69591243), (9, 23197081), (19, 10988091), (43, 4855203), (57, 3662697), (129, 1618401), (171, 1220899), (387, 539467), (817, 255537), (2451, 85179), (7353, 28393)]