20974288

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{31973}}^1$

素因数の和:32022

約数の個数: 20

約数和(自身を含む): 41630148

約数和(自身を除く): 20655860

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 31973, 63946, 127892, 255784, 511568, 1310893, 2621786, 5243572, 10487144, 20974288]

約数ペア:

[(1, 20974288), (2, 10487144), (4, 5243572), (8, 2621786), (16, 1310893), (41, 511568), (82, 255784), (164, 127892), (328, 63946), (656, 31973)]