21404168

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1907}}^1$

素因数の和:1997

約数の個数: 32

約数和(自身を含む): 42586560

約数和(自身を除く): 21182392

約数列:

[1, 2, 4, 8, 23, 46, 61, 92, 122, 184, 244, 488, 1403, 1907, 2806, 3814, 5612, 7628, 11224, 15256, 43861, 87722, 116327, 175444, 232654, 350888, 465308, 930616, 2675521, 5351042, 10702084, 21404168]

約数ペア:

[(1, 21404168), (2, 10702084), (4, 5351042), (8, 2675521), (23, 930616), (46, 465308), (61, 350888), (92, 232654), (122, 175444), (184, 116327), (244, 87722), (488, 43861), (1403, 15256), (1907, 11224), (2806, 7628), (3814, 5612)]