20199771

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{349}}^1$

素因数の和:523

約数の個数: 24

約数和(自身を含む): 30030000

約数和(自身を除く): 9830229

約数列:

[1, 3, 9, 59, 109, 177, 327, 349, 531, 981, 1047, 3141, 6431, 19293, 20591, 38041, 57879, 61773, 114123, 185319, 342369, 2244419, 6733257, 20199771]

約数ペア:

[(1, 20199771), (3, 6733257), (9, 2244419), (59, 342369), (109, 185319), (177, 114123), (327, 61773), (349, 57879), (531, 38041), (981, 20591), (1047, 19293), (3141, 6431)]