21202923

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{13831}}^1$

素因数の和:13914

約数の個数: 16

約数和(自身を含む): 32754176

約数和(自身を除く): 11551253

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 13831, 41493, 96817, 290451, 1009663, 3028989, 7067641, 21202923]

約数ペア:

[(1, 21202923), (3, 7067641), (7, 3028989), (21, 1009663), (73, 290451), (219, 96817), (511, 41493), (1533, 13831)]