991761183

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1\times {\mathrm{2087}}^1$

素因数の和:2516

約数の個数: 48

約数和(自身を含む): 1728529920

約数和(自身を除く): 736768737

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 397, 399, 1191, 1197, 2087, 2779, 3573, 6261, 7543, 8337, 14609, 18783, 22629, 25011, 39653, 43827, 52801, 67887, 118959, 131481, 158403, 277571, 356877, 475209, 828539, 832713, 2485617, 2498139, 5799773, 7456851, 15742241, 17399319, 47226723, 52197957, 110195687, 141680169, 330587061, 991761183]

約数ペア:

[(1, 991761183), (3, 330587061), (7, 141680169), (9, 110195687), (19, 52197957), (21, 47226723), (57, 17399319), (63, 15742241), (133, 7456851), (171, 5799773), (397, 2498139), (399, 2485617), (1191, 832713), (1197, 828539), (2087, 475209), (2779, 356877), (3573, 277571), (6261, 158403), (7543, 131481), (8337, 118959), (14609, 67887), (18783, 52801), (22629, 43827), (25011, 39653)]