2720529

素因数分解:

$3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:250

約数の個数: 36

約数和(自身を含む): 4742400

約数和(自身を除く): 2021871

約数列:

[1, 3, 7, 9, 21, 31, 49, 63, 93, 147, 199, 217, 279, 441, 597, 651, 1393, 1519, 1791, 1953, 4179, 4557, 6169, 9751, 12537, 13671, 18507, 29253, 43183, 55521, 87759, 129549, 302281, 388647, 906843, 2720529]

約数ペア:

[(1, 2720529), (3, 906843), (7, 388647), (9, 302281), (21, 129549), (31, 87759), (49, 55521), (63, 43183), (93, 29253), (147, 18507), (199, 13671), (217, 12537), (279, 9751), (441, 6169), (597, 4557), (651, 4179), (1393, 1953), (1519, 1791)]