20742453

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{449}}^1$

素因数の和:546

約数の個数: 32

約数和(自身を含む): 32400000

約数和(自身を除く): 11657547

約数列:

[1, 3, 9, 27, 29, 59, 87, 177, 261, 449, 531, 783, 1347, 1593, 1711, 4041, 5133, 12123, 13021, 15399, 26491, 39063, 46197, 79473, 117189, 238419, 351567, 715257, 768239, 2304717, 6914151, 20742453]

約数ペア:

[(1, 20742453), (3, 6914151), (9, 2304717), (27, 768239), (29, 715257), (59, 351567), (87, 238419), (177, 117189), (261, 79473), (449, 46197), (531, 39063), (783, 26491), (1347, 15399), (1593, 13021), (1711, 12123), (4041, 5133)]