20572641

素因数分解:

$3^2\times {\mathrm{73}}^1\times {\mathrm{173}}^1\times {\mathrm{181}}^1$

素因数の和:433

約数の個数: 24

約数和(自身を含む): 30464616

約数和(自身を除く): 9891975

約数列:

[1, 3, 9, 73, 173, 181, 219, 519, 543, 657, 1557, 1629, 12629, 13213, 31313, 37887, 39639, 93939, 113661, 118917, 281817, 2285849, 6857547, 20572641]

約数ペア:

[(1, 20572641), (3, 6857547), (9, 2285849), (73, 281817), (173, 118917), (181, 113661), (219, 93939), (519, 39639), (543, 37887), (657, 31313), (1557, 13213), (1629, 12629)]