21691995969

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{259993}}^1$

素因数の和:260169

約数の個数: 32

約数和(自身を含む): 34444005120

約数和(自身を除く): 12752009151

約数列:

[1, 3, 7, 21, 29, 87, 137, 203, 411, 609, 959, 2877, 3973, 11919, 27811, 83433, 259993, 779979, 1819951, 5459853, 7539797, 22619391, 35619041, 52778579, 106857123, 158335737, 249333287, 747999861, 1032952189, 3098856567, 7230665323, 21691995969]

約数ペア:

[(1, 21691995969), (3, 7230665323), (7, 3098856567), (21, 1032952189), (29, 747999861), (87, 249333287), (137, 158335737), (203, 106857123), (411, 52778579), (609, 35619041), (959, 22619391), (2877, 7539797), (3973, 5459853), (11919, 1819951), (27811, 779979), (83433, 259993)]