20868771

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1481}}^1$

素因数の和:1563

約数の個数: 32

約数和(自身を含む): 35283456

約数和(自身を除く): 14414685

約数列:

[1, 3, 7, 11, 21, 33, 61, 77, 183, 231, 427, 671, 1281, 1481, 2013, 4443, 4697, 10367, 14091, 16291, 31101, 48873, 90341, 114037, 271023, 342111, 632387, 993751, 1897161, 2981253, 6956257, 20868771]

約数ペア:

[(1, 20868771), (3, 6956257), (7, 2981253), (11, 1897161), (21, 993751), (33, 632387), (61, 342111), (77, 271023), (183, 114037), (231, 90341), (427, 48873), (671, 31101), (1281, 16291), (1481, 14091), (2013, 10367), (4443, 4697)]