21000786628

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{4253}}^1\times {\mathrm{30109}}^1$

素因数の和:34407

約数の個数: 24

約数和(自身を含む): 37657854360

約数和(自身を除く): 16657067732

約数列:

[1, 2, 4, 41, 82, 164, 4253, 8506, 17012, 30109, 60218, 120436, 174373, 348746, 697492, 1234469, 2468938, 4937876, 128053577, 256107154, 512214308, 5250196657, 10500393314, 21000786628]

約数ペア:

[(1, 21000786628), (2, 10500393314), (4, 5250196657), (41, 512214308), (82, 256107154), (164, 128053577), (4253, 4937876), (8506, 2468938), (17012, 1234469), (30109, 697492), (60218, 348746), (120436, 174373)]