12540381

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{7559}}^1$

素因数の和:7648

約数の個数: 16

約数和(自身を含む): 19353600

約数和(自身を除く): 6813219

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 7559, 22677, 52913, 158739, 597161, 1791483, 4180127, 12540381]

約数ペア:

[(1, 12540381), (3, 4180127), (7, 1791483), (21, 597161), (79, 158739), (237, 52913), (553, 22677), (1659, 7559)]