2109891

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{463}}^1$

素因数の和:511

約数の個数: 24

約数和(自身を含む): 3385344

約数和(自身を除く): 1275453

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 463, 651, 1389, 1519, 3241, 4557, 9723, 14353, 22687, 43059, 68061, 100471, 301413, 703297, 2109891]

約数ペア:

[(1, 2109891), (3, 703297), (7, 301413), (21, 100471), (31, 68061), (49, 43059), (93, 22687), (147, 14353), (217, 9723), (463, 4557), (651, 3241), (1389, 1519)]