21107149

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{2137}}^1$

素因数の和:2244

約数の個数: 16

約数和(自身を含む): 25861248

約数和(自身を除く): 4754099

約数列:

[1, 7, 17, 83, 119, 581, 1411, 2137, 9877, 14959, 36329, 177371, 254303, 1241597, 3015307, 21107149]

約数ペア:

[(1, 21107149), (7, 3015307), (17, 1241597), (83, 254303), (119, 177371), (581, 36329), (1411, 14959), (2137, 9877)]