21670393

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2917}}^1$

素因数の和:2976

約数の個数: 16

約数和(自身を含む): 25211520

約数和(自身を除く): 3541127

約数列:

[1, 17, 19, 23, 323, 391, 437, 2917, 7429, 49589, 55423, 67091, 942191, 1140547, 1274729, 21670393]

約数ペア:

[(1, 21670393), (17, 1274729), (19, 1140547), (23, 942191), (323, 67091), (391, 55423), (437, 49589), (2917, 7429)]