12821744

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{61643}}^1$

素因数の和:61664

約数の個数: 20

約数和(自身を含む): 26753496

約数和(自身を除く): 13931752

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 61643, 123286, 246572, 493144, 801359, 986288, 1602718, 3205436, 6410872, 12821744]

約数ペア:

[(1, 12821744), (2, 6410872), (4, 3205436), (8, 1602718), (13, 986288), (16, 801359), (26, 493144), (52, 246572), (104, 123286), (208, 61643)]