218071707

素因数分解:

$3^1\times 7^2\times {\mathrm{631}}^1\times {\mathrm{2351}}^1$

素因数の和:2999

約数の個数: 24

約数和(自身を含む): 338913792

約数和(自身を除く): 120842085

約数列:

[1, 3, 7, 21, 49, 147, 631, 1893, 2351, 4417, 7053, 13251, 16457, 30919, 49371, 92757, 115199, 345597, 1483481, 4450443, 10384367, 31153101, 72690569, 218071707]

約数ペア:

[(1, 218071707), (3, 72690569), (7, 31153101), (21, 10384367), (49, 4450443), (147, 1483481), (631, 345597), (1893, 115199), (2351, 92757), (4417, 49371), (7053, 30919), (13251, 16457)]