20916813

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{283}}^1\times {\mathrm{347}}^1$

素因数の和:704

約数の個数: 16

約数和(自身を含む): 28463616

約数和(自身を除く): 7546803

約数列:

[1, 3, 71, 213, 283, 347, 849, 1041, 20093, 24637, 60279, 73911, 98201, 294603, 6972271, 20916813]

約数ペア:

[(1, 20916813), (3, 6972271), (71, 294603), (213, 98201), (283, 73911), (347, 60279), (849, 24637), (1041, 20093)]