2991159

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:259

約数の個数: 24

約数和(自身を含む): 4552704

約数和(自身を除く): 1561545

約数列:

[1, 3, 9, 31, 71, 93, 151, 213, 279, 453, 639, 1359, 2201, 4681, 6603, 10721, 14043, 19809, 32163, 42129, 96489, 332351, 997053, 2991159]

約数ペア:

[(1, 2991159), (3, 997053), (9, 332351), (31, 96489), (71, 42129), (93, 32163), (151, 19809), (213, 14043), (279, 10721), (453, 6603), (639, 4681), (1359, 2201)]