20681031

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^2\times {\mathrm{1171}}^1$

素因数の和:1239

約数の個数: 24

約数和(自身を含む): 32665984

約数和(自身を除く): 11984953

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 841, 1171, 2523, 3513, 5887, 8197, 17661, 24591, 33959, 101877, 237713, 713139, 984811, 2954433, 6893677, 20681031]

約数ペア:

[(1, 20681031), (3, 6893677), (7, 2954433), (21, 984811), (29, 713139), (87, 237713), (203, 101877), (609, 33959), (841, 24591), (1171, 17661), (2523, 8197), (3513, 5887)]