18883953

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:190

約数の個数: 48

約数和(自身を含む): 31337280

約数和(自身を除く): 12453327

約数列:

[1, 3, 9, 11, 33, 53, 59, 61, 99, 159, 177, 183, 477, 531, 549, 583, 649, 671, 1749, 1947, 2013, 3127, 3233, 3599, 5247, 5841, 6039, 9381, 9699, 10797, 28143, 29097, 32391, 34397, 35563, 39589, 103191, 106689, 118767, 190747, 309573, 320067, 356301, 572241, 1716723, 2098217, 6294651, 18883953]

約数ペア:

[(1, 18883953), (3, 6294651), (9, 2098217), (11, 1716723), (33, 572241), (53, 356301), (59, 320067), (61, 309573), (99, 190747), (159, 118767), (177, 106689), (183, 103191), (477, 39589), (531, 35563), (549, 34397), (583, 32391), (649, 29097), (671, 28143), (1749, 10797), (1947, 9699), (2013, 9381), (3127, 6039), (3233, 5841), (3599, 5247)]