28915131

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{72469}}^1$

素因数の和:72498

約数の個数: 16

約数和(自身を含む): 46380800

約数和(自身を除く): 17465669

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 72469, 217407, 507283, 1376911, 1521849, 4130733, 9638377, 28915131]

約数ペア:

[(1, 28915131), (3, 9638377), (7, 4130733), (19, 1521849), (21, 1376911), (57, 507283), (133, 217407), (399, 72469)]