20165507937

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{26881}}^1$

素因数の和:27054

約数の個数: 48

約数和(自身を含む): 31703555520

約数和(自身を除く): 11538047583

約数列:

[1, 3, 9, 19, 41, 57, 107, 123, 171, 321, 369, 779, 963, 2033, 2337, 4387, 6099, 7011, 13161, 18297, 26881, 39483, 80643, 83353, 241929, 250059, 510739, 750177, 1102121, 1532217, 2876267, 3306363, 4596651, 8628801, 9919089, 20940299, 25886403, 54649073, 62820897, 117926947, 163947219, 188462691, 353780841, 491841657, 1061342523, 2240611993, 6721835979, 20165507937]

約数ペア:

[(1, 20165507937), (3, 6721835979), (9, 2240611993), (19, 1061342523), (41, 491841657), (57, 353780841), (107, 188462691), (123, 163947219), (171, 117926947), (321, 62820897), (369, 54649073), (779, 25886403), (963, 20940299), (2033, 9919089), (2337, 8628801), (4387, 4596651), (6099, 3306363), (7011, 2876267), (13161, 1532217), (18297, 1102121), (26881, 750177), (39483, 510739), (80643, 250059), (83353, 241929)]