81635913

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{599}}^1\times {\mathrm{797}}^1$

素因数の和:1421

約数の個数: 24

約数和(自身を含む): 124488000

約数和(自身を除く): 42852087

約数列:

[1, 3, 9, 19, 57, 171, 599, 797, 1797, 2391, 5391, 7173, 11381, 15143, 34143, 45429, 102429, 136287, 477403, 1432209, 4296627, 9070657, 27211971, 81635913]

約数ペア:

[(1, 81635913), (3, 27211971), (9, 9070657), (19, 4296627), (57, 1432209), (171, 477403), (599, 136287), (797, 102429), (1797, 45429), (2391, 34143), (5391, 15143), (7173, 11381)]