21336609

素因数分解:

$3^1\times 7^2\times {\mathrm{173}}^1\times {\mathrm{839}}^1$

素因数の和:1029

約数の個数: 24

約数和(自身を含む): 33324480

約数和(自身を除く): 11987871

約数列:

[1, 3, 7, 21, 49, 147, 173, 519, 839, 1211, 2517, 3633, 5873, 8477, 17619, 25431, 41111, 123333, 145147, 435441, 1016029, 3048087, 7112203, 21336609]

約数ペア:

[(1, 21336609), (3, 7112203), (7, 3048087), (21, 1016029), (49, 435441), (147, 145147), (173, 123333), (519, 41111), (839, 25431), (1211, 17619), (2517, 8477), (3633, 5873)]