28806489

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{241}}^1$

素因数の和:502

約数の個数: 32

約数和(自身を含む): 45302400

約数和(自身を除く): 16495911

約数列:

[1, 3, 9, 19, 27, 57, 171, 233, 241, 513, 699, 723, 2097, 2169, 4427, 4579, 6291, 6507, 13281, 13737, 39843, 41211, 56153, 119529, 123633, 168459, 505377, 1066907, 1516131, 3200721, 9602163, 28806489]

約数ペア:

[(1, 28806489), (3, 9602163), (9, 3200721), (19, 1516131), (27, 1066907), (57, 505377), (171, 168459), (233, 123633), (241, 119529), (513, 56153), (699, 41211), (723, 39843), (2097, 13737), (2169, 13281), (4427, 6507), (4579, 6291)]