2721159

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{919}}^1$

素因数の和:979

約数の個数: 24

約数和(自身を含む): 4592640

約数和(自身を除く): 1871481

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 919, 987, 2757, 2961, 6433, 8271, 19299, 43193, 57897, 129579, 302351, 388737, 907053, 2721159]

約数ペア:

[(1, 2721159), (3, 907053), (7, 388737), (9, 302351), (21, 129579), (47, 57897), (63, 43193), (141, 19299), (329, 8271), (423, 6433), (919, 2961), (987, 2757)]