209933901

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{25889}}^1$

素因数の和:25965

約数の個数: 24

約数和(自身を含む): 327146040

約数和(自身を除く): 117212139

約数列:

[1, 3, 9, 17, 51, 53, 153, 159, 477, 901, 2703, 8109, 25889, 77667, 233001, 440113, 1320339, 1372117, 3961017, 4116351, 12349053, 23325989, 69977967, 209933901]

約数ペア:

[(1, 209933901), (3, 69977967), (9, 23325989), (17, 12349053), (51, 4116351), (53, 3961017), (153, 1372117), (159, 1320339), (477, 440113), (901, 233001), (2703, 77667), (8109, 25889)]