81118079

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{431}}^1$

素因数の和:635

約数の個数: 24

約数和(自身を含む): 99283968

約数和(自身を除く): 18165889

約数列:

[1, 7, 23, 49, 161, 167, 431, 1127, 1169, 3017, 3841, 8183, 9913, 21119, 26887, 69391, 71977, 188209, 485737, 503839, 1655471, 3526873, 11588297, 81118079]

約数ペア:

[(1, 81118079), (7, 11588297), (23, 3526873), (49, 1655471), (161, 503839), (167, 485737), (431, 188209), (1127, 71977), (1169, 69391), (3017, 26887), (3841, 21119), (8183, 9913)]