21050911

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{2467}}^1$

素因数の和:2550

約数の個数: 16

約数和(自身を含む): 25588224

約数和(自身を除く): 4537313

約数列:

[1, 7, 23, 53, 161, 371, 1219, 2467, 8533, 17269, 56741, 130751, 397187, 915257, 3007273, 21050911]

約数ペア:

[(1, 21050911), (7, 3007273), (23, 915257), (53, 397187), (161, 130751), (371, 56741), (1219, 17269), (2467, 8533)]