81657996

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{972119}}^1$

素因数の和:972133

約数の個数: 24

約数和(自身を含む): 217754880

約数和(自身を除く): 136096884

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 972119, 1944238, 2916357, 3888476, 5832714, 6804833, 11665428, 13609666, 20414499, 27219332, 40828998, 81657996]

約数ペア:

[(1, 81657996), (2, 40828998), (3, 27219332), (4, 20414499), (6, 13609666), (7, 11665428), (12, 6804833), (14, 5832714), (21, 3888476), (28, 2916357), (42, 1944238), (84, 972119)]