28142973

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{439}}^1$

素因数の和:881

約数の個数: 24

約数和(自身を含む): 43243200

約数和(自身を除く): 15100227

約数列:

[1, 3, 9, 17, 51, 153, 419, 439, 1257, 1317, 3771, 3951, 7123, 7463, 21369, 22389, 64107, 67167, 183941, 551823, 1655469, 3126997, 9380991, 28142973]

約数ペア:

[(1, 28142973), (3, 9380991), (9, 3126997), (17, 1655469), (51, 551823), (153, 183941), (419, 67167), (439, 64107), (1257, 22389), (1317, 21369), (3771, 7463), (3951, 7123)]