20139009

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{6857}}^1$

素因数の和:6960

約数の個数: 16

約数和(自身を含む): 29626560

約数和(自身を除く): 9487551

約数列:

[1, 3, 11, 33, 89, 267, 979, 2937, 6857, 20571, 75427, 226281, 610273, 1830819, 6713003, 20139009]

約数ペア:

[(1, 20139009), (3, 6713003), (11, 1830819), (33, 610273), (89, 226281), (267, 75427), (979, 20571), (2937, 6857)]