681897418

素因数分解:

$2^1\times {\mathrm{313}}^1\times {\mathrm{677}}^1\times {\mathrm{1609}}^1$

素因数の和:2601

約数の個数: 16

約数和(自身を含む): 1028268360

約数和(自身を除く): 346370942

約数列:

[1, 2, 313, 626, 677, 1354, 1609, 3218, 211901, 423802, 503617, 1007234, 1089293, 2178586, 340948709, 681897418]

約数ペア:

[(1, 681897418), (2, 340948709), (313, 2178586), (626, 1089293), (677, 1007234), (1354, 503617), (1609, 423802), (3218, 211901)]