21241354

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{7873}}^1$

素因数の和:7965

約数の個数: 16

約数和(自身を含む): 34015680

約数和(自身を除く): 12774326

約数列:

[1, 2, 19, 38, 71, 142, 1349, 2698, 7873, 15746, 149587, 299174, 558983, 1117966, 10620677, 21241354]

約数ペア:

[(1, 21241354), (2, 10620677), (19, 1117966), (38, 558983), (71, 299174), (142, 149587), (1349, 15746), (2698, 7873)]