19977712

素因数分解:

$2^4\times {\mathrm{431}}^1\times {\mathrm{2897}}^1$

素因数の和:3336

約数の個数: 20

約数和(自身を含む): 38810016

約数和(自身を除く): 18832304

約数列:

[1, 2, 4, 8, 16, 431, 862, 1724, 2897, 3448, 5794, 6896, 11588, 23176, 46352, 1248607, 2497214, 4994428, 9988856, 19977712]

約数ペア:

[(1, 19977712), (2, 9988856), (4, 4994428), (8, 2497214), (16, 1248607), (431, 46352), (862, 23176), (1724, 11588), (2897, 6896), (3448, 5794)]