1948779

素因数分解:

$3^4\times 7^2\times {\mathrm{491}}^1$

素因数の和:517

約数の個数: 30

約数和(自身を含む): 3393324

約数和(自身を除く): 1444545

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 491, 567, 1323, 1473, 3437, 3969, 4419, 10311, 13257, 24059, 30933, 39771, 72177, 92799, 216531, 278397, 649593, 1948779]

約数ペア:

[(1, 1948779), (3, 649593), (7, 278397), (9, 216531), (21, 92799), (27, 72177), (49, 39771), (63, 30933), (81, 24059), (147, 13257), (189, 10311), (441, 4419), (491, 3969), (567, 3437), (1323, 1473)]