161777252161

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{19940497}}^1$

素因数の和:19940584

約数の個数: 16

約数和(自身を含む): 197809740160

約数和(自身を除く): 36032487999

約数列:

[1, 7, 19, 61, 133, 427, 1159, 8113, 19940497, 139583479, 378869443, 1216370317, 2652086101, 8514592219, 23111036023, 161777252161]

約数ペア:

[(1, 161777252161), (7, 23111036023), (19, 8514592219), (61, 2652086101), (133, 1216370317), (427, 378869443), (1159, 139583479), (8113, 19940497)]