20993704

素因数分解:

$2^3\times {\mathrm{199}}^1\times {\mathrm{13187}}^1$

素因数の和:13392

約数の個数: 16

約数和(自身を含む): 39564000

約数和(自身を除く): 18570296

約数列:

[1, 2, 4, 8, 199, 398, 796, 1592, 13187, 26374, 52748, 105496, 2624213, 5248426, 10496852, 20993704]

約数ペア:

[(1, 20993704), (2, 10496852), (4, 5248426), (8, 2624213), (199, 105496), (398, 52748), (796, 26374), (1592, 13187)]