205155021

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{491}}^1$

素因数の和:657

約数の個数: 32

約数和(自身を含む): 290949120

約数和(自身を除く): 85794099

約数列:

[1, 3, 41, 43, 79, 123, 129, 237, 491, 1473, 1763, 3239, 3397, 5289, 9717, 10191, 20131, 21113, 38789, 60393, 63339, 116367, 139277, 417831, 865633, 1590349, 1667927, 2596899, 4771047, 5003781, 68385007, 205155021]

約数ペア:

[(1, 205155021), (3, 68385007), (41, 5003781), (43, 4771047), (79, 2596899), (123, 1667927), (129, 1590349), (237, 865633), (491, 417831), (1473, 139277), (1763, 116367), (3239, 63339), (3397, 60393), (5289, 38789), (9717, 21113), (10191, 20131)]