87878021

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{8581}}^1$

素因数の和:8625

約数の個数: 24

約数和(自身を含む): 117401760

約数和(自身を除く): 29523739

約数列:

[1, 7, 11, 19, 49, 77, 133, 209, 539, 931, 1463, 8581, 10241, 60067, 94391, 163039, 420469, 660737, 1141273, 1793429, 4625159, 7988911, 12554003, 87878021]

約数ペア:

[(1, 87878021), (7, 12554003), (11, 7988911), (19, 4625159), (49, 1793429), (77, 1141273), (133, 660737), (209, 420469), (539, 163039), (931, 94391), (1463, 60067), (8581, 10241)]