21571896

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{20903}}^1$

素因数の和:20955

約数の個数: 32

約数和(自身を含む): 55186560

約数和(自身を除く): 33614664

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 344, 516, 1032, 20903, 41806, 62709, 83612, 125418, 167224, 250836, 501672, 898829, 1797658, 2696487, 3595316, 5392974, 7190632, 10785948, 21571896]

約数ペア:

[(1, 21571896), (2, 10785948), (3, 7190632), (4, 5392974), (6, 3595316), (8, 2696487), (12, 1797658), (24, 898829), (43, 501672), (86, 250836), (129, 167224), (172, 125418), (258, 83612), (344, 62709), (516, 41806), (1032, 20903)]