21719097

素因数分解:

$3^7\times {\mathrm{9931}}^1$

素因数の和:9952

約数の個数: 16

約数和(自身を含む): 32576960

約数和(自身を除く): 10857863

約数列:

[1, 3, 9, 27, 81, 243, 729, 2187, 9931, 29793, 89379, 268137, 804411, 2413233, 7239699, 21719097]

約数ペア:

[(1, 21719097), (3, 7239699), (9, 2413233), (27, 804411), (81, 268137), (243, 89379), (729, 29793), (2187, 9931)]