20541339

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3583}}^1$

素因数の和:3616

約数の個数: 36

約数和(自身を含む): 37180416

約数和(自身を除く): 16639077

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 441, 637, 819, 1911, 3583, 5733, 10749, 25081, 32247, 46579, 75243, 139737, 175567, 225729, 326053, 419211, 526701, 978159, 1580103, 2282371, 2934477, 6847113, 20541339]

約数ペア:

[(1, 20541339), (3, 6847113), (7, 2934477), (9, 2282371), (13, 1580103), (21, 978159), (39, 526701), (49, 419211), (63, 326053), (91, 225729), (117, 175567), (147, 139737), (273, 75243), (441, 46579), (637, 32247), (819, 25081), (1911, 10749), (3583, 5733)]