20423109

素因数分解:

$3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{9629}}^1$

素因数の和:9740

約数の個数: 16

約数和(自身を含む): 31432320

約数和(自身を除く): 11009211

約数列:

[1, 3, 7, 21, 101, 303, 707, 2121, 9629, 28887, 67403, 202209, 972529, 2917587, 6807703, 20423109]

約数ペア:

[(1, 20423109), (3, 6807703), (7, 2917587), (21, 972529), (101, 202209), (303, 67403), (707, 28887), (2121, 9629)]