21071494

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{1783}}^1$

素因数の和:2115

約数の個数: 16

約数和(自身を含む): 33396480

約数和(自身を除く): 12324986

約数列:

[1, 2, 19, 38, 311, 622, 1783, 3566, 5909, 11818, 33877, 67754, 554513, 1109026, 10535747, 21071494]

約数ペア:

[(1, 21071494), (2, 10535747), (19, 1109026), (38, 554513), (311, 67754), (622, 33877), (1783, 11818), (3566, 5909)]