20753937

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{607}}^1$

素因数の和:773

約数の個数: 24

約数和(自身を含む): 31299840

約数和(自身を除く): 10545903

約数列:

[1, 3, 9, 29, 87, 131, 261, 393, 607, 1179, 1821, 3799, 5463, 11397, 17603, 34191, 52809, 79517, 158427, 238551, 715653, 2305993, 6917979, 20753937]

約数ペア:

[(1, 20753937), (3, 6917979), (9, 2305993), (29, 715653), (87, 238551), (131, 158427), (261, 79517), (393, 52809), (607, 34191), (1179, 17603), (1821, 11397), (3799, 5463)]