208321275

素因数分解:

$3^1\times 5^2\times {\mathrm{127}}^1\times {\mathrm{21871}}^1$

素因数の和:22011

約数の個数: 24

約数和(自身を含む): 347152384

約数和(自身を除く): 138831109

約数列:

[1, 3, 5, 15, 25, 75, 127, 381, 635, 1905, 3175, 9525, 21871, 65613, 109355, 328065, 546775, 1640325, 2777617, 8332851, 13888085, 41664255, 69440425, 208321275]

約数ペア:

[(1, 208321275), (3, 69440425), (5, 41664255), (15, 13888085), (25, 8332851), (75, 2777617), (127, 1640325), (381, 546775), (635, 328065), (1905, 109355), (3175, 65613), (9525, 21871)]