28657538

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{1559}}^1$

素因数の和:1682

約数の個数: 32

約数和(自身を含む): 53464320

約数和(自身を除く): 24806782

約数列:

[1, 2, 7, 13, 14, 26, 91, 101, 182, 202, 707, 1313, 1414, 1559, 2626, 3118, 9191, 10913, 18382, 20267, 21826, 40534, 141869, 157459, 283738, 314918, 1102213, 2046967, 2204426, 4093934, 14328769, 28657538]

約数ペア:

[(1, 28657538), (2, 14328769), (7, 4093934), (13, 2204426), (14, 2046967), (26, 1102213), (91, 314918), (101, 283738), (182, 157459), (202, 141869), (707, 40534), (1313, 21826), (1414, 20267), (1559, 18382), (2626, 10913), (3118, 9191)]