71831457

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{9769}}^1$

素因数の和:9837

約数の個数: 24

約数和(自身を含む): 111768800

約数和(自身を除く): 39937343

約数列:

[1, 3, 9, 19, 43, 57, 129, 171, 387, 817, 2451, 7353, 9769, 29307, 87921, 185611, 420067, 556833, 1260201, 1670499, 3780603, 7981273, 23943819, 71831457]

約数ペア:

[(1, 71831457), (3, 23943819), (9, 7981273), (19, 3780603), (43, 1670499), (57, 1260201), (129, 556833), (171, 420067), (387, 185611), (817, 87921), (2451, 29307), (7353, 9769)]