209317617

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{311}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 331164288

約数和(自身を除く): 121846671

約数列:

[1, 3, 9, 17, 51, 53, 83, 153, 159, 249, 311, 477, 747, 901, 933, 1411, 2703, 2799, 4233, 4399, 5287, 8109, 12699, 13197, 15861, 16483, 25813, 39591, 47583, 49449, 74783, 77439, 148347, 224349, 232317, 280211, 438821, 673047, 840633, 1316463, 1368089, 2521899, 3949389, 4104267, 12312801, 23257513, 69772539, 209317617]

約数ペア:

[(1, 209317617), (3, 69772539), (9, 23257513), (17, 12312801), (51, 4104267), (53, 3949389), (83, 2521899), (153, 1368089), (159, 1316463), (249, 840633), (311, 673047), (477, 438821), (747, 280211), (901, 232317), (933, 224349), (1411, 148347), (2703, 77439), (2799, 74783), (4233, 49449), (4399, 47583), (5287, 39591), (8109, 25813), (12699, 16483), (13197, 15861)]