20400609

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{271}}^1\times {\mathrm{1091}}^1$

素因数の和:1388

約数の個数: 16

約数和(自身を含む): 28514304

約数和(自身を除く): 8113695

約数列:

[1, 3, 23, 69, 271, 813, 1091, 3273, 6233, 18699, 25093, 75279, 295661, 886983, 6800203, 20400609]

約数ペア:

[(1, 20400609), (3, 6800203), (23, 886983), (69, 295661), (271, 75279), (813, 25093), (1091, 18699), (3273, 6233)]