28920129

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{33589}}^1$

素因数の和:33640

約数の個数: 16

約数和(自身を含む): 45144960

約数和(自身を除く): 16224831

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 33589, 100767, 235123, 705369, 1377149, 4131447, 9640043, 28920129]

約数ペア:

[(1, 28920129), (3, 9640043), (7, 4131447), (21, 1377149), (41, 705369), (123, 235123), (287, 100767), (861, 33589)]