81310761

素因数分解:

$3^2\times 7^1\times {\mathrm{397}}^1\times {\mathrm{3251}}^1$

素因数の和:3661

約数の個数: 24

約数和(自身を含む): 134606784

約数和(自身を除く): 53296023

約数列:

[1, 3, 7, 9, 21, 63, 397, 1191, 2779, 3251, 3573, 8337, 9753, 22757, 25011, 29259, 68271, 204813, 1290647, 3871941, 9034529, 11615823, 27103587, 81310761]

約数ペア:

[(1, 81310761), (3, 27103587), (7, 11615823), (9, 9034529), (21, 3871941), (63, 1290647), (397, 204813), (1191, 68271), (2779, 29259), (3251, 25011), (3573, 22757), (8337, 9753)]