21681686

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{2789}}^1$

素因数の和:2840

約数の個数: 24

約数和(自身を含む): 36761040

約数和(自身を除く): 15079354

約数列:

[1, 2, 13, 23, 26, 46, 169, 299, 338, 598, 2789, 3887, 5578, 7774, 36257, 64147, 72514, 128294, 471341, 833911, 942682, 1667822, 10840843, 21681686]

約数ペア:

[(1, 21681686), (2, 10840843), (13, 1667822), (23, 942682), (26, 833911), (46, 471341), (169, 128294), (299, 72514), (338, 64147), (598, 36257), (2789, 7774), (3887, 5578)]