20111979

素因数分解:

$3^1\times {\mathrm{37}}^2\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:219

約数の個数: 24

約数和(自身を含む): 28365120

約数和(自身を除く): 8253141

約数列:

[1, 3, 37, 59, 83, 111, 177, 249, 1369, 2183, 3071, 4107, 4897, 6549, 9213, 14691, 80771, 113627, 181189, 242313, 340881, 543567, 6703993, 20111979]

約数ペア:

[(1, 20111979), (3, 6703993), (37, 543567), (59, 340881), (83, 242313), (111, 181189), (177, 113627), (249, 80771), (1369, 14691), (2183, 9213), (3071, 6549), (4107, 4897)]