2688538

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{509}}^1$

素因数の和:669

約数の個数: 16

約数和(自身を含む): 4284000

約数和(自身を除く): 1595462

約数列:

[1, 2, 19, 38, 139, 278, 509, 1018, 2641, 5282, 9671, 19342, 70751, 141502, 1344269, 2688538]

約数ペア:

[(1, 2688538), (2, 1344269), (19, 141502), (38, 70751), (139, 19342), (278, 9671), (509, 5282), (1018, 2641)]