20739416

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{60289}}^1$

素因数の和:60338

約数の個数: 16

約数和(自身を含む): 39791400

約数和(自身を除く): 19051984

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 60289, 120578, 241156, 482312, 2592427, 5184854, 10369708, 20739416]

約数ペア:

[(1, 20739416), (2, 10369708), (4, 5184854), (8, 2592427), (43, 482312), (86, 241156), (172, 120578), (344, 60289)]