21367172

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{1069}}^1$

素因数の和:1355

約数の個数: 24

約数和(自身を含む): 39547200

約数和(自身を除く): 18180028

約数列:

[1, 2, 4, 19, 38, 76, 263, 526, 1052, 1069, 2138, 4276, 4997, 9994, 19988, 20311, 40622, 81244, 281147, 562294, 1124588, 5341793, 10683586, 21367172]

約数ペア:

[(1, 21367172), (2, 10683586), (4, 5341793), (19, 1124588), (38, 562294), (76, 281147), (263, 81244), (526, 40622), (1052, 20311), (1069, 19988), (2138, 9994), (4276, 4997)]