209898405

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{91459}}^1$

素因数の和:91490

約数の個数: 32

約数和(自身を含む): 395107200

約数和(自身を除く): 185208795

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 91459, 274377, 457295, 823131, 1371885, 1554803, 2469393, 4115655, 4664409, 7774015, 12346965, 13993227, 23322045, 41979681, 69966135, 209898405]

約数ペア:

[(1, 209898405), (3, 69966135), (5, 41979681), (9, 23322045), (15, 13993227), (17, 12346965), (27, 7774015), (45, 4664409), (51, 4115655), (85, 2469393), (135, 1554803), (153, 1371885), (255, 823131), (459, 457295), (765, 274377), (2295, 91459)]