20111408

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{73939}}^1$

素因数の和:73964

約数の個数: 20

約数和(自身を含む): 41258520

約数和(自身を除く): 21147112

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 73939, 147878, 295756, 591512, 1183024, 1256963, 2513926, 5027852, 10055704, 20111408]

約数ペア:

[(1, 20111408), (2, 10055704), (4, 5027852), (8, 2513926), (16, 1256963), (17, 1183024), (34, 591512), (68, 295756), (136, 147878), (272, 73939)]