28161981

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{193}}^1\times {\mathrm{523}}^1$

素因数の和:753

約数の個数: 24

約数和(自身を含む): 42288896

約数和(自身を除く): 14126915

約数列:

[1, 3, 9, 31, 93, 193, 279, 523, 579, 1569, 1737, 4707, 5983, 16213, 17949, 48639, 53847, 100939, 145917, 302817, 908451, 3129109, 9387327, 28161981]

約数ペア:

[(1, 28161981), (3, 9387327), (9, 3129109), (31, 908451), (93, 302817), (193, 145917), (279, 100939), (523, 53847), (579, 48639), (1569, 17949), (1737, 16213), (4707, 5983)]