20865103

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{647}}^1$

素因数の和:942

約数の個数: 16

約数和(自身を含む): 25380864

約数和(自身を除く): 4515761

約数列:

[1, 7, 17, 119, 271, 647, 1897, 4529, 4607, 10999, 32249, 76993, 175337, 1227359, 2980729, 20865103]

約数ペア:

[(1, 20865103), (7, 2980729), (17, 1227359), (119, 175337), (271, 76993), (647, 32249), (1897, 10999), (4529, 4607)]