21249239

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{293}}^1\times {\mathrm{347}}^1$

素因数の和:670

約数の個数: 16

約数和(自身を含む): 24554880

約数和(自身を除く): 3305641

約数列:

[1, 11, 19, 209, 293, 347, 3223, 3817, 5567, 6593, 61237, 72523, 101671, 1118381, 1931749, 21249239]

約数ペア:

[(1, 21249239), (11, 1931749), (19, 1118381), (209, 101671), (293, 72523), (347, 61237), (3223, 6593), (3817, 5567)]