21569091

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{661}}^1$

素因数の和:886

約数の個数: 16

約数和(自身を含む): 29392800

約数和(自身を除く): 7823709

約数列:

[1, 3, 73, 149, 219, 447, 661, 1983, 10877, 32631, 48253, 98489, 144759, 295467, 7189697, 21569091]

約数ペア:

[(1, 21569091), (3, 7189697), (73, 295467), (149, 144759), (219, 98489), (447, 48253), (661, 32631), (1983, 10877)]