19771955

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{18223}}^1$

素因数の和:18266

約数の個数: 16

約数和(自身を含む): 27992064

約数和(自身を除く): 8220109

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 18223, 91115, 127561, 564913, 637805, 2824565, 3954391, 19771955]

約数ペア:

[(1, 19771955), (5, 3954391), (7, 2824565), (31, 637805), (35, 564913), (155, 127561), (217, 91115), (1085, 18223)]