19792787

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{463}}^1$

素因数の和:698

約数の個数: 16

約数和(自身を含む): 23519232

約数和(自身を除く): 3726445

約数列:

[1, 7, 31, 197, 217, 463, 1379, 3241, 6107, 14353, 42749, 91211, 100471, 638477, 2827541, 19792787]

約数ペア:

[(1, 19792787), (7, 2827541), (31, 638477), (197, 100471), (217, 91211), (463, 42749), (1379, 14353), (3241, 6107)]