21195259

素因数分解:

${\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{739}}^1$

素因数の和:834

約数の個数: 16

約数和(自身を含む): 23443200

約数和(自身を除く): 2247941

約数列:

[1, 23, 29, 43, 667, 739, 989, 1247, 16997, 21431, 28681, 31777, 492913, 730871, 921533, 21195259]

約数ペア:

[(1, 21195259), (23, 921533), (29, 730871), (43, 492913), (667, 31777), (739, 28681), (989, 21431), (1247, 16997)]