2171205

素因数分解:

$3^5\times 5^1\times {\mathrm{1787}}^1$

素因数の和:1807

約数の個数: 24

約数和(自身を含む): 3904992

約数和(自身を除く): 1733787

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 1787, 5361, 8935, 16083, 26805, 48249, 80415, 144747, 241245, 434241, 723735, 2171205]

約数ペア:

[(1, 2171205), (3, 723735), (5, 434241), (9, 241245), (15, 144747), (27, 80415), (45, 48249), (81, 26805), (135, 16083), (243, 8935), (405, 5361), (1215, 1787)]