21479886

素因数分解:

$2^1\times 3^2\times {\mathrm{239}}^1\times {\mathrm{4993}}^1$

素因数の和:5240

約数の個数: 24

約数和(自身を含む): 46743840

約数和(自身を除く): 25263954

約数列:

[1, 2, 3, 6, 9, 18, 239, 478, 717, 1434, 2151, 4302, 4993, 9986, 14979, 29958, 44937, 89874, 1193327, 2386654, 3579981, 7159962, 10739943, 21479886]

約数ペア:

[(1, 21479886), (2, 10739943), (3, 7159962), (6, 3579981), (9, 2386654), (18, 1193327), (239, 89874), (478, 44937), (717, 29958), (1434, 14979), (2151, 9986), (4302, 4993)]