20198283

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:307

約数の個数: 32

約数和(自身を含む): 31726080

約数和(自身を除く): 11527797

約数列:

[1, 3, 7, 21, 89, 101, 107, 267, 303, 321, 623, 707, 749, 1869, 2121, 2247, 8989, 9523, 10807, 26967, 28569, 32421, 62923, 66661, 75649, 188769, 199983, 226947, 961823, 2885469, 6732761, 20198283]

約数ペア:

[(1, 20198283), (3, 6732761), (7, 2885469), (21, 961823), (89, 226947), (101, 199983), (107, 188769), (267, 75649), (303, 66661), (321, 62923), (623, 32421), (707, 28569), (749, 26967), (1869, 10807), (2121, 9523), (2247, 8989)]