1639639911

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{858001}}^1$

素因数の和:858031

約数の個数: 24

約数和(自身を含む): 2738742384

約数和(自身を除く): 1099102473

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 858001, 2574003, 6006007, 11154013, 18018021, 33462039, 42042049, 78078091, 126126147, 234234273, 546546637, 1639639911]

約数ペア:

[(1, 1639639911), (3, 546546637), (7, 234234273), (13, 126126147), (21, 78078091), (39, 42042049), (49, 33462039), (91, 18018021), (147, 11154013), (273, 6006007), (637, 2574003), (1911, 858001)]