208439457

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{9689}}^1$

素因数の和:9864

約数の個数: 16

約数和(自身を含む): 284653440

約数和(自身を除く): 76213983

約数列:

[1, 3, 71, 101, 213, 303, 7171, 9689, 21513, 29067, 687919, 978589, 2063757, 2935767, 69479819, 208439457]

約数ペア:

[(1, 208439457), (3, 69479819), (71, 2935767), (101, 2063757), (213, 978589), (303, 687919), (7171, 29067), (9689, 21513)]