20397694

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{239}}^1\times {\mathrm{307}}^1$

素因数の和:687

約数の個数: 16

約数和(自身を含む): 31046400

約数和(自身を除く): 10648706

約数列:

[1, 2, 139, 239, 278, 307, 478, 614, 33221, 42673, 66442, 73373, 85346, 146746, 10198847, 20397694]

約数ペア:

[(1, 20397694), (2, 10198847), (139, 146746), (239, 85346), (278, 73373), (307, 66442), (478, 42673), (614, 33221)]