21283444

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{8353}}^1$

素因数の和:8384

約数の個数: 36

約数和(自身を含む): 46665444

約数和(自身を除く): 25382000

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 364, 637, 1274, 2548, 8353, 16706, 33412, 58471, 108589, 116942, 217178, 233884, 409297, 434356, 760123, 818594, 1520246, 1637188, 3040492, 5320861, 10641722, 21283444]

約数ペア:

[(1, 21283444), (2, 10641722), (4, 5320861), (7, 3040492), (13, 1637188), (14, 1520246), (26, 818594), (28, 760123), (49, 434356), (52, 409297), (91, 233884), (98, 217178), (182, 116942), (196, 108589), (364, 58471), (637, 33412), (1274, 16706), (2548, 8353)]