20514526

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1\times {\mathrm{907}}^1$

素因数の和:1215

約数の個数: 16

約数和(自身を含む): 31641984

約数和(自身を除く): 11127458

約数列:

[1, 2, 43, 86, 263, 526, 907, 1814, 11309, 22618, 39001, 78002, 238541, 477082, 10257263, 20514526]

約数ペア:

[(1, 20514526), (2, 10257263), (43, 477082), (86, 238541), (263, 78002), (526, 39001), (907, 22618), (1814, 11309)]