81945087

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{419}}^1$

素因数の和:635

約数の個数: 32

約数和(自身を含む): 127948800

約数和(自身を除く): 46003713

約数列:

[1, 3, 7, 21, 67, 139, 201, 417, 419, 469, 973, 1257, 1407, 2919, 2933, 8799, 9313, 27939, 28073, 58241, 65191, 84219, 174723, 195573, 196511, 407687, 589533, 1223061, 3902147, 11706441, 27315029, 81945087]

約数ペア:

[(1, 81945087), (3, 27315029), (7, 11706441), (21, 3902147), (67, 1223061), (139, 589533), (201, 407687), (417, 196511), (419, 195573), (469, 174723), (973, 84219), (1257, 65191), (1407, 58241), (2919, 28073), (2933, 27939), (8799, 9313)]