20568921

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{3889}}^1$

素因数の和:3976

約数の個数: 16

約数和(自身を含む): 28754880

約数和(自身を除く): 8185959

約数列:

[1, 3, 41, 43, 123, 129, 1763, 3889, 5289, 11667, 159449, 167227, 478347, 501681, 6856307, 20568921]

約数ペア:

[(1, 20568921), (3, 6856307), (41, 501681), (43, 478347), (123, 167227), (129, 159449), (1763, 11667), (3889, 5289)]