172797219

素因数分解:

$3^4\times 7^1\times {\mathrm{304757}}^1$

素因数の和:304776

約数の個数: 20

約数和(自身を含む): 295005744

約数和(自身を除く): 122208525

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 304757, 914271, 2133299, 2742813, 6399897, 8228439, 19199691, 24685317, 57599073, 172797219]

約数ペア:

[(1, 172797219), (3, 57599073), (7, 24685317), (9, 19199691), (21, 8228439), (27, 6399897), (63, 2742813), (81, 2133299), (189, 914271), (567, 304757)]