28744359

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1181}}^1$

素因数の和:1271

約数の個数: 32

約数和(自身を含む): 46901760

約数和(自身を除く): 18157401

約数列:

[1, 3, 7, 19, 21, 57, 61, 133, 183, 399, 427, 1159, 1181, 1281, 3477, 3543, 8113, 8267, 22439, 24339, 24801, 67317, 72041, 157073, 216123, 471219, 504287, 1368779, 1512861, 4106337, 9581453, 28744359]

約数ペア:

[(1, 28744359), (3, 9581453), (7, 4106337), (19, 1512861), (21, 1368779), (57, 504287), (61, 471219), (133, 216123), (183, 157073), (399, 72041), (427, 67317), (1159, 24801), (1181, 24339), (1281, 22439), (3477, 8267), (3543, 8113)]