12030921

素因数分解:

$3^2\times 7^2\times {\mathrm{27281}}^1$

素因数の和:27301

約数の個数: 18

約数和(自身を含む): 20215962

約数和(自身を除く): 8185041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 27281, 81843, 190967, 245529, 572901, 1336769, 1718703, 4010307, 12030921]

約数ペア:

[(1, 12030921), (3, 4010307), (7, 1718703), (9, 1336769), (21, 572901), (49, 245529), (63, 190967), (147, 81843), (441, 27281)]