21130394

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{463}}^1\times {\mathrm{1201}}^1$

素因数の和:1685

約数の個数: 16

約数和(自身を含む): 33463680

約数和(自身を除く): 12333286

約数列:

[1, 2, 19, 38, 463, 926, 1201, 2402, 8797, 17594, 22819, 45638, 556063, 1112126, 10565197, 21130394]

約数ペア:

[(1, 21130394), (2, 10565197), (19, 1112126), (38, 556063), (463, 45638), (926, 22819), (1201, 17594), (2402, 8797)]