20438684

素因数分解:

$2^2\times 7^3\times {\mathrm{14897}}^1$

素因数の和:14922

約数の個数: 24

約数和(自身を含む): 41714400

約数和(自身を除く): 21275716

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 14897, 29794, 59588, 104279, 208558, 417116, 729953, 1459906, 2919812, 5109671, 10219342, 20438684]

約数ペア:

[(1, 20438684), (2, 10219342), (4, 5109671), (7, 2919812), (14, 1459906), (28, 729953), (49, 417116), (98, 208558), (196, 104279), (343, 59588), (686, 29794), (1372, 14897)]