2215206819

素因数分解:

$3^3\times 7^1\times {\mathrm{11720671}}^1$

素因数の和:11720687

約数の個数: 16

約数和(自身を含む): 3750615040

約数和(自身を除く): 1535408221

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 11720671, 35162013, 82044697, 105486039, 246134091, 316458117, 738402273, 2215206819]

約数ペア:

[(1, 2215206819), (3, 738402273), (7, 316458117), (9, 246134091), (21, 105486039), (27, 82044697), (63, 35162013), (189, 11720671)]