19897195

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{937}}^1$

素因数の和:1110

約数の個数: 16

約数和(自身を含む): 24853248

約数和(自身を除く): 4956053

約数列:

[1, 5, 31, 137, 155, 685, 937, 4247, 4685, 21235, 29047, 128369, 145235, 641845, 3979439, 19897195]

約数ペア:

[(1, 19897195), (5, 3979439), (31, 641845), (137, 145235), (155, 128369), (685, 29047), (937, 21235), (4247, 4685)]