30819159

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{25747}}^1$

素因数の和:25779

約数の個数: 24

約数和(自身を含む): 53555840

約数和(自身を除く): 22736681

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 25747, 77241, 180229, 231723, 489193, 540687, 1467579, 1622061, 3424351, 4402737, 10273053, 30819159]

約数ペア:

[(1, 30819159), (3, 10273053), (7, 4402737), (9, 3424351), (19, 1622061), (21, 1467579), (57, 540687), (63, 489193), (133, 231723), (171, 180229), (399, 77241), (1197, 25747)]