21251868

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{1229}}^1$

素因数の和:1378

約数の個数: 48

約数和(自身を含む): 54552960

約数和(自身を除く): 33301092

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 131, 132, 262, 393, 524, 786, 1229, 1441, 1572, 2458, 2882, 3687, 4323, 4916, 5764, 7374, 8646, 13519, 14748, 17292, 27038, 40557, 54076, 81114, 160999, 162228, 321998, 482997, 643996, 965994, 1770989, 1931988, 3541978, 5312967, 7083956, 10625934, 21251868]

約数ペア:

[(1, 21251868), (2, 10625934), (3, 7083956), (4, 5312967), (6, 3541978), (11, 1931988), (12, 1770989), (22, 965994), (33, 643996), (44, 482997), (66, 321998), (131, 162228), (132, 160999), (262, 81114), (393, 54076), (524, 40557), (786, 27038), (1229, 17292), (1441, 14748), (1572, 13519), (2458, 8646), (2882, 7374), (3687, 5764), (4323, 4916)]