20979276

素因数分解:

$2^2\times 3^1\times {\mathrm{107}}^1\times {\mathrm{16339}}^1$

素因数の和:16453

約数の個数: 24

約数和(自身を含む): 49412160

約数和(自身を除く): 28432884

約数列:

[1, 2, 3, 4, 6, 12, 107, 214, 321, 428, 642, 1284, 16339, 32678, 49017, 65356, 98034, 196068, 1748273, 3496546, 5244819, 6993092, 10489638, 20979276]

約数ペア:

[(1, 20979276), (2, 10489638), (3, 6993092), (4, 5244819), (6, 3496546), (12, 1748273), (107, 196068), (214, 98034), (321, 65356), (428, 49017), (642, 32678), (1284, 16339)]