21735469

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{269}}^1$

素因数の和:397

約数の個数: 24

約数和(自身を含む): 27147960

約数和(自身を除く): 5412491

約数列:

[1, 7, 17, 49, 97, 119, 269, 679, 833, 1649, 1883, 4573, 4753, 11543, 13181, 26093, 32011, 80801, 182651, 224077, 443581, 1278557, 3105067, 21735469]

約数ペア:

[(1, 21735469), (7, 3105067), (17, 1278557), (49, 443581), (97, 224077), (119, 182651), (269, 80801), (679, 32011), (833, 26093), (1649, 13181), (1883, 11543), (4573, 4753)]