21257784

素因数分解:

$2^3\times 3^2\times {\mathrm{295247}}^1$

素因数の和:295259

約数の個数: 24

約数和(自身を含む): 57573360

約数和(自身を除く): 36315576

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 295247, 590494, 885741, 1180988, 1771482, 2361976, 2657223, 3542964, 5314446, 7085928, 10628892, 21257784]

約数ペア:

[(1, 21257784), (2, 10628892), (3, 7085928), (4, 5314446), (6, 3542964), (8, 2657223), (9, 2361976), (12, 1771482), (18, 1180988), (24, 885741), (36, 590494), (72, 295247)]