20987768

素因数分解:

$2^3\times {\mathrm{967}}^1\times {\mathrm{2713}}^1$

素因数の和:3686

約数の個数: 16

約数和(自身を含む): 39407280

約数和(自身を除く): 18419512

約数列:

[1, 2, 4, 8, 967, 1934, 2713, 3868, 5426, 7736, 10852, 21704, 2623471, 5246942, 10493884, 20987768]

約数ペア:

[(1, 20987768), (2, 10493884), (4, 5246942), (8, 2623471), (967, 21704), (1934, 10852), (2713, 7736), (3868, 5426)]