21159039

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{1523}}^1$

素因数の和:1958

約数の個数: 16

約数和(自身を含む): 30870144

約数和(自身を除く): 9711105

約数列:

[1, 3, 11, 33, 421, 1263, 1523, 4569, 4631, 13893, 16753, 50259, 641183, 1923549, 7053013, 21159039]

約数ペア:

[(1, 21159039), (3, 7053013), (11, 1923549), (33, 641183), (421, 50259), (1263, 16753), (1523, 13893), (4569, 4631)]