17221281

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{74551}}^1$

素因数の和:74572

約数の個数: 16

約数和(自身を含む): 28627968

約数和(自身を除く): 11406687

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 74551, 223653, 521857, 820061, 1565571, 2460183, 5740427, 17221281]

約数ペア:

[(1, 17221281), (3, 5740427), (7, 2460183), (11, 1565571), (21, 820061), (33, 521857), (77, 223653), (231, 74551)]