991889402

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1161463}}^1$

素因数の和:1161533

約数の個数: 16

約数和(自身を含む): 1728258432

約数和(自身を除く): 736369030

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 1161463, 2322926, 8130241, 16260482, 70849243, 141698486, 495944701, 991889402]

約数ペア:

[(1, 991889402), (2, 495944701), (7, 141698486), (14, 70849243), (61, 16260482), (122, 8130241), (427, 2322926), (854, 1161463)]