81715545

素因数分解:

$3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{27103}}^1$

素因数の和:27181

約数の個数: 24

約数和(自身を含む): 143759616

約数和(自身を除く): 62044071

約数列:

[1, 3, 5, 9, 15, 45, 67, 201, 335, 603, 1005, 3015, 27103, 81309, 135515, 243927, 406545, 1219635, 1815901, 5447703, 9079505, 16343109, 27238515, 81715545]

約数ペア:

[(1, 81715545), (3, 27238515), (5, 16343109), (9, 9079505), (15, 5447703), (45, 1815901), (67, 1219635), (201, 406545), (335, 243927), (603, 135515), (1005, 81309), (3015, 27103)]