205657109

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{241}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 255923712

約数和(自身を除く): 50266603

約数列:

[1, 7, 17, 71, 101, 119, 241, 497, 707, 1207, 1687, 1717, 4097, 7171, 8449, 12019, 17111, 24341, 28679, 50197, 119777, 121907, 170387, 290887, 413797, 853349, 1728211, 2036209, 2896579, 12097477, 29379587, 205657109]

約数ペア:

[(1, 205657109), (7, 29379587), (17, 12097477), (71, 2896579), (101, 2036209), (119, 1728211), (241, 853349), (497, 413797), (707, 290887), (1207, 170387), (1687, 121907), (1717, 119777), (4097, 50197), (7171, 28679), (8449, 24341), (12019, 17111)]