20953881

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2267}}^1$

素因数の和:2365

約数の個数: 24

約数和(自身を含む): 33022080

約数和(自身を除く): 12068199

約数列:

[1, 3, 9, 13, 39, 79, 117, 237, 711, 1027, 2267, 3081, 6801, 9243, 20403, 29471, 88413, 179093, 265239, 537279, 1611837, 2328209, 6984627, 20953881]

約数ペア:

[(1, 20953881), (3, 6984627), (9, 2328209), (13, 1611837), (39, 537279), (79, 265239), (117, 179093), (237, 88413), (711, 29471), (1027, 20403), (2267, 9243), (3081, 6801)]