19661005

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{6173}}^1$

素因数の和:6205

約数の個数: 24

約数和(自身を含む): 29561112

約数和(自身を除く): 9900107

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 6173, 30865, 43211, 80249, 216055, 302477, 401245, 561743, 1512385, 2808715, 3932201, 19661005]

約数ペア:

[(1, 19661005), (5, 3932201), (7, 2808715), (13, 1512385), (35, 561743), (49, 401245), (65, 302477), (91, 216055), (245, 80249), (455, 43211), (637, 30865), (3185, 6173)]