21258672

素因数分解:

$2^4\times 3^1\times {\mathrm{211}}^1\times {\mathrm{2099}}^1$

素因数の和:2321

約数の個数: 40

約数和(自身を含む): 55204800

約数和(自身を除く): 33946128

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 211, 422, 633, 844, 1266, 1688, 2099, 2532, 3376, 4198, 5064, 6297, 8396, 10128, 12594, 16792, 25188, 33584, 50376, 100752, 442889, 885778, 1328667, 1771556, 2657334, 3543112, 5314668, 7086224, 10629336, 21258672]

約数ペア:

[(1, 21258672), (2, 10629336), (3, 7086224), (4, 5314668), (6, 3543112), (8, 2657334), (12, 1771556), (16, 1328667), (24, 885778), (48, 442889), (211, 100752), (422, 50376), (633, 33584), (844, 25188), (1266, 16792), (1688, 12594), (2099, 10128), (2532, 8396), (3376, 6297), (4198, 5064)]