19701087

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{5827}}^1$

素因数の和:5867

約数の個数: 24

約数和(自身を含む): 31890816

約数和(自身を除く): 12189729

約数列:

[1, 3, 7, 21, 23, 49, 69, 147, 161, 483, 1127, 3381, 5827, 17481, 40789, 122367, 134021, 285523, 402063, 856569, 938147, 2814441, 6567029, 19701087]

約数ペア:

[(1, 19701087), (3, 6567029), (7, 2814441), (21, 938147), (23, 856569), (49, 402063), (69, 285523), (147, 134021), (161, 122367), (483, 40789), (1127, 17481), (3381, 5827)]