217416717

素因数分解:

$3^5\times 7^1\times {\mathrm{127817}}^1$

素因数の和:127839

約数の個数: 24

約数和(自身を含む): 372206016

約数和(自身を除く): 154789299

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 127817, 383451, 894719, 1150353, 2684157, 3451059, 8052471, 10353177, 24157413, 31059531, 72472239, 217416717]

約数ペア:

[(1, 217416717), (3, 72472239), (7, 31059531), (9, 24157413), (21, 10353177), (27, 8052471), (63, 3451059), (81, 2684157), (189, 1150353), (243, 894719), (567, 383451), (1701, 127817)]