20777735

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{337}}^1$

素因数の和:431

約数の個数: 32

約数和(自身を含む): 29203200

約数和(自身を除く): 8425465

約数列:

[1, 5, 11, 19, 55, 59, 95, 209, 295, 337, 649, 1045, 1121, 1685, 3245, 3707, 5605, 6403, 12331, 18535, 19883, 32015, 61655, 70433, 99415, 218713, 352165, 377777, 1093565, 1888885, 4155547, 20777735]

約数ペア:

[(1, 20777735), (5, 4155547), (11, 1888885), (19, 1093565), (55, 377777), (59, 352165), (95, 218713), (209, 99415), (295, 70433), (337, 61655), (649, 32015), (1045, 19883), (1121, 18535), (1685, 12331), (3245, 6403), (3707, 5605)]