217415527

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{1097}}^1\times {\mathrm{1231}}^1$

素因数の和:2358

約数の個数: 16

約数和(自身を含む): 259725312

約数和(自身を除く): 42309785

約数列:

[1, 7, 23, 161, 1097, 1231, 7679, 8617, 25231, 28313, 176617, 198191, 1350407, 9452849, 31059361, 217415527]

約数ペア:

[(1, 217415527), (7, 31059361), (23, 9452849), (161, 1350407), (1097, 198191), (1231, 176617), (7679, 28313), (8617, 25231)]