20711007

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{3907}}^1$

素因数の和:3963

約数の個数: 24

約数和(自身を含む): 32514560

約数和(自身を除く): 11803553

約数列:

[1, 3, 9, 19, 31, 57, 93, 171, 279, 589, 1767, 3907, 5301, 11721, 35163, 74233, 121117, 222699, 363351, 668097, 1090053, 2301223, 6903669, 20711007]

約数ペア:

[(1, 20711007), (3, 6903669), (9, 2301223), (19, 1090053), (31, 668097), (57, 363351), (93, 222699), (171, 121117), (279, 74233), (589, 35163), (1767, 11721), (3907, 5301)]