20850809

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{743}}^1$

素因数の和:980

約数の個数: 16

約数和(自身を含む): 25236480

約数和(自身を除く): 4385671

約数列:

[1, 7, 19, 133, 211, 743, 1477, 4009, 5201, 14117, 28063, 98819, 156773, 1097411, 2978687, 20850809]

約数ペア:

[(1, 20850809), (7, 2978687), (19, 1097411), (133, 156773), (211, 98819), (743, 28063), (1477, 14117), (4009, 5201)]