20907964

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67883}}^1$

素因数の和:67905

約数の個数: 24

約数和(自身を含む): 45618048

約数和(自身を除く): 24710084

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 67883, 135766, 271532, 475181, 746713, 950362, 1493426, 1900724, 2986852, 5226991, 10453982, 20907964]

約数ペア:

[(1, 20907964), (2, 10453982), (4, 5226991), (7, 2986852), (11, 1900724), (14, 1493426), (22, 950362), (28, 746713), (44, 475181), (77, 271532), (154, 135766), (308, 67883)]