19894833

素因数分解:

$3^2\times 7^2\times {\mathrm{197}}^1\times {\mathrm{229}}^1$

素因数の和:446

約数の個数: 36

約数和(自身を含む): 33745140

約数和(自身を除く): 13850307

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 197, 229, 441, 591, 687, 1379, 1603, 1773, 2061, 4137, 4809, 9653, 11221, 12411, 14427, 28959, 33663, 45113, 86877, 100989, 135339, 315791, 406017, 947373, 2210537, 2842119, 6631611, 19894833]

約数ペア:

[(1, 19894833), (3, 6631611), (7, 2842119), (9, 2210537), (21, 947373), (49, 406017), (63, 315791), (147, 135339), (197, 100989), (229, 86877), (441, 45113), (591, 33663), (687, 28959), (1379, 14427), (1603, 12411), (1773, 11221), (2061, 9653), (4137, 4809)]