1231979

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:242

約数の個数: 16

約数和(自身を含む): 1516800

約数和(自身を除く): 284821

約数列:

[1, 7, 19, 59, 133, 157, 413, 1099, 1121, 2983, 7847, 9263, 20881, 64841, 175997, 1231979]

約数ペア:

[(1, 1231979), (7, 175997), (19, 64841), (59, 20881), (133, 9263), (157, 7847), (413, 2983), (1099, 1121)]