20544489

素因数分解:

$3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1531}}^1$

素因数の和:1618

約数の個数: 32

約数和(自身を含む): 35297280

約数和(自身を除く): 14752791

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 189, 213, 497, 639, 1491, 1531, 1917, 4473, 4593, 10717, 13419, 13779, 32151, 41337, 96453, 108701, 289359, 326103, 760907, 978309, 2282721, 2934927, 6848163, 20544489]

約数ペア:

[(1, 20544489), (3, 6848163), (7, 2934927), (9, 2282721), (21, 978309), (27, 760907), (63, 326103), (71, 289359), (189, 108701), (213, 96453), (497, 41337), (639, 32151), (1491, 13779), (1531, 13419), (1917, 10717), (4473, 4593)]