217615217

素因数分解:

${\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^2\times {\mathrm{79}}^1$

素因数の和:245

約数の個数: 24

約数和(自身を含む): 238339200

約数和(自身を除く): 20723983

約数列:

[1, 29, 43, 47, 79, 1247, 1363, 2021, 2209, 2291, 3397, 3713, 58609, 64061, 94987, 98513, 107677, 159659, 174511, 2754623, 4630111, 5060819, 7503973, 217615217]

約数ペア:

[(1, 217615217), (29, 7503973), (43, 5060819), (47, 4630111), (79, 2754623), (1247, 174511), (1363, 159659), (2021, 107677), (2209, 98513), (2291, 94987), (3397, 64061), (3713, 58609)]