28325871

素因数分解:

$3^2\times 7^2\times {\mathrm{64231}}^1$

素因数の和:64251

約数の個数: 18

約数和(自身を含む): 47595912

約数和(自身を除く): 19270041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 64231, 192693, 449617, 578079, 1348851, 3147319, 4046553, 9441957, 28325871]

約数ペア:

[(1, 28325871), (3, 9441957), (7, 4046553), (9, 3147319), (21, 1348851), (49, 578079), (63, 449617), (147, 192693), (441, 64231)]