21170978

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{467}}^1\times {\mathrm{1193}}^1$

素因数の和:1681

約数の個数: 16

約数和(自身を含む): 33527520

約数和(自身を除く): 12356542

約数列:

[1, 2, 19, 38, 467, 934, 1193, 2386, 8873, 17746, 22667, 45334, 557131, 1114262, 10585489, 21170978]

約数ペア:

[(1, 21170978), (2, 10585489), (19, 1114262), (38, 557131), (467, 45334), (934, 22667), (1193, 17746), (2386, 8873)]