21319665

素因数分解:

$3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{9539}}^1$

素因数の和:9696

約数の個数: 16

約数和(自身を含む): 34344000

約数和(自身を除く): 13024335

約数列:

[1, 3, 5, 15, 149, 447, 745, 2235, 9539, 28617, 47695, 143085, 1421311, 4263933, 7106555, 21319665]

約数ペア:

[(1, 21319665), (3, 7106555), (5, 4263933), (15, 1421311), (149, 143085), (447, 47695), (745, 28617), (2235, 9539)]