17664921

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{439}}^1$

素因数の和:725

約数の個数: 24

約数和(自身を含む): 27181440

約数和(自身を除く): 9516519

約数列:

[1, 3, 9, 17, 51, 153, 263, 439, 789, 1317, 2367, 3951, 4471, 7463, 13413, 22389, 40239, 67167, 115457, 346371, 1039113, 1962769, 5888307, 17664921]

約数ペア:

[(1, 17664921), (3, 5888307), (9, 1962769), (17, 1039113), (51, 346371), (153, 115457), (263, 67167), (439, 40239), (789, 22389), (1317, 13413), (2367, 7463), (3951, 4471)]