21999006

素因数分解:

$2^1\times 3^3\times {\mathrm{307}}^1\times {\mathrm{1327}}^1$

素因数の和:1645

約数の個数: 32

約数和(自身を含む): 49082880

約数和(自身を除く): 27083874

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 307, 614, 921, 1327, 1842, 2654, 2763, 3981, 5526, 7962, 8289, 11943, 16578, 23886, 35829, 71658, 407389, 814778, 1222167, 2444334, 3666501, 7333002, 10999503, 21999006]

約数ペア:

[(1, 21999006), (2, 10999503), (3, 7333002), (6, 3666501), (9, 2444334), (18, 1222167), (27, 814778), (54, 407389), (307, 71658), (614, 35829), (921, 23886), (1327, 16578), (1842, 11943), (2654, 8289), (2763, 7962), (3981, 5526)]