18901936

素因数分解:

$2^4\times {\mathrm{431}}^1\times {\mathrm{2741}}^1$

素因数の和:3180

約数の個数: 20

約数和(自身を含む): 36720864

約数和(自身を除く): 17818928

約数列:

[1, 2, 4, 8, 16, 431, 862, 1724, 2741, 3448, 5482, 6896, 10964, 21928, 43856, 1181371, 2362742, 4725484, 9450968, 18901936]

約数ペア:

[(1, 18901936), (2, 9450968), (4, 4725484), (8, 2362742), (16, 1181371), (431, 43856), (862, 21928), (1724, 10964), (2741, 6896), (3448, 5482)]