21977368

素因数分解:

$2^3\times 7^1\times {\mathrm{601}}^1\times {\mathrm{653}}^1$

素因数の和:1267

約数の個数: 32

約数和(自身を含む): 47244960

約数和(自身を除く): 25267592

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 601, 653, 1202, 1306, 2404, 2612, 4207, 4571, 4808, 5224, 8414, 9142, 16828, 18284, 33656, 36568, 392453, 784906, 1569812, 2747171, 3139624, 5494342, 10988684, 21977368]

約数ペア:

[(1, 21977368), (2, 10988684), (4, 5494342), (7, 3139624), (8, 2747171), (14, 1569812), (28, 784906), (56, 392453), (601, 36568), (653, 33656), (1202, 18284), (1306, 16828), (2404, 9142), (2612, 8414), (4207, 5224), (4571, 4808)]