20770407

素因数分解:

$3^2\times 7^1\times {\mathrm{439}}^1\times {\mathrm{751}}^1$

素因数の和:1203

約数の個数: 24

約数和(自身を含む): 34411520

約数和(自身を除く): 13641113

約数列:

[1, 3, 7, 9, 21, 63, 439, 751, 1317, 2253, 3073, 3951, 5257, 6759, 9219, 15771, 27657, 47313, 329689, 989067, 2307823, 2967201, 6923469, 20770407]

約数ペア:

[(1, 20770407), (3, 6923469), (7, 2967201), (9, 2307823), (21, 989067), (63, 329689), (439, 47313), (751, 27657), (1317, 15771), (2253, 9219), (3073, 6759), (3951, 5257)]