21557061

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{1051}}^1$

素因数の和:1153

約数の個数: 24

約数和(自身を含む): 32494176

約数和(自身を除く): 10937115

約数列:

[1, 3, 9, 43, 53, 129, 159, 387, 477, 1051, 2279, 3153, 6837, 9459, 20511, 45193, 55703, 135579, 167109, 406737, 501327, 2395229, 7185687, 21557061]

約数ペア:

[(1, 21557061), (3, 7185687), (9, 2395229), (43, 501327), (53, 406737), (129, 167109), (159, 135579), (387, 55703), (477, 45193), (1051, 20511), (2279, 9459), (3153, 6837)]