21887492

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{4649}}^1$

素因数の和:4771

約数の個数: 24

約数和(自身を含む): 42184800

約数和(自身を除く): 20297308

約数列:

[1, 2, 4, 11, 22, 44, 107, 214, 428, 1177, 2354, 4649, 4708, 9298, 18596, 51139, 102278, 204556, 497443, 994886, 1989772, 5471873, 10943746, 21887492]

約数ペア:

[(1, 21887492), (2, 10943746), (4, 5471873), (11, 1989772), (22, 994886), (44, 497443), (107, 204556), (214, 102278), (428, 51139), (1177, 18596), (2354, 9298), (4649, 4708)]