20111906

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{2647}}^1$

素因数の和:2809

約数の個数: 16

約数和(自身を含む): 31458240

約数和(自身を除く): 11346334

約数列:

[1, 2, 29, 58, 131, 262, 2647, 3799, 5294, 7598, 76763, 153526, 346757, 693514, 10055953, 20111906]

約数ペア:

[(1, 20111906), (2, 10055953), (29, 693514), (58, 346757), (131, 153526), (262, 76763), (2647, 7598), (3799, 5294)]