21299448

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{20639}}^1$

素因数の和:20691

約数の個数: 32

約数和(自身を含む): 54489600

約数和(自身を除く): 33190152

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 344, 516, 1032, 20639, 41278, 61917, 82556, 123834, 165112, 247668, 495336, 887477, 1774954, 2662431, 3549908, 5324862, 7099816, 10649724, 21299448]

約数ペア:

[(1, 21299448), (2, 10649724), (3, 7099816), (4, 5324862), (6, 3549908), (8, 2662431), (12, 1774954), (24, 887477), (43, 495336), (86, 247668), (129, 165112), (172, 123834), (258, 82556), (344, 61917), (516, 41278), (1032, 20639)]