21021812

素因数分解:

$2^2\times 7^1\times {\mathrm{269}}^1\times {\mathrm{2791}}^1$

素因数の和:3071

約数の個数: 24

約数和(自身を含む): 42215040

約数和(自身を除く): 21193228

約数列:

[1, 2, 4, 7, 14, 28, 269, 538, 1076, 1883, 2791, 3766, 5582, 7532, 11164, 19537, 39074, 78148, 750779, 1501558, 3003116, 5255453, 10510906, 21021812]

約数ペア:

[(1, 21021812), (2, 10510906), (4, 5255453), (7, 3003116), (14, 1501558), (28, 750779), (269, 78148), (538, 39074), (1076, 19537), (1883, 11164), (2791, 7532), (3766, 5582)]