19928705

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{619}}^1$

素因数の和:808

約数の個数: 16

約数和(自身を含む): 24641280

約数和(自身を除く): 4712575

約数列:

[1, 5, 47, 137, 235, 619, 685, 3095, 6439, 29093, 32195, 84803, 145465, 424015, 3985741, 19928705]

約数ペア:

[(1, 19928705), (5, 3985741), (47, 424015), (137, 145465), (235, 84803), (619, 32195), (685, 29093), (3095, 6439)]