21579636

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3217}}^1$

素因数の和:3280

約数の個数: 48

約数和(自身を含む): 55504064

約数和(自身を除く): 33924428

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 43, 52, 78, 86, 129, 156, 172, 258, 516, 559, 1118, 1677, 2236, 3217, 3354, 6434, 6708, 9651, 12868, 19302, 38604, 41821, 83642, 125463, 138331, 167284, 250926, 276662, 414993, 501852, 553324, 829986, 1659972, 1798303, 3596606, 5394909, 7193212, 10789818, 21579636]

約数ペア:

[(1, 21579636), (2, 10789818), (3, 7193212), (4, 5394909), (6, 3596606), (12, 1798303), (13, 1659972), (26, 829986), (39, 553324), (43, 501852), (52, 414993), (78, 276662), (86, 250926), (129, 167284), (156, 138331), (172, 125463), (258, 83642), (516, 41821), (559, 38604), (1118, 19302), (1677, 12868), (2236, 9651), (3217, 6708), (3354, 6434)]