20572857

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{439}}^1$

素因数の和:613

約数の個数: 24

約数和(自身を含む): 30750720

約数和(自身を除く): 10177863

約数列:

[1, 3, 9, 41, 123, 127, 369, 381, 439, 1143, 1317, 3951, 5207, 15621, 17999, 46863, 53997, 55753, 161991, 167259, 501777, 2285873, 6857619, 20572857]

約数ペア:

[(1, 20572857), (3, 6857619), (9, 2285873), (41, 501777), (123, 167259), (127, 161991), (369, 55753), (381, 53997), (439, 46863), (1143, 17999), (1317, 15621), (3951, 5207)]