21473169

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{1381}}^1$

素因数の和:1528

約数の個数: 16

約数和(自身を含む): 29453184

約数和(自身を除く): 7980015

約数列:

[1, 3, 71, 73, 213, 219, 1381, 4143, 5183, 15549, 98051, 100813, 294153, 302439, 7157723, 21473169]

約数ペア:

[(1, 21473169), (3, 7157723), (71, 302439), (73, 294153), (213, 100813), (219, 98051), (1381, 15549), (4143, 5183)]