30990843

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1549}}^1$

素因数の和:1593

約数の個数: 40

約数和(自身を含む): 52514000

約数和(自身を除く): 21523157

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 81, 117, 171, 247, 351, 513, 741, 1053, 1539, 1549, 2223, 4647, 6669, 13941, 20007, 20137, 29431, 41823, 60411, 88293, 125469, 181233, 264879, 382603, 543699, 794637, 1147809, 1631097, 2383911, 3443427, 10330281, 30990843]

約数ペア:

[(1, 30990843), (3, 10330281), (9, 3443427), (13, 2383911), (19, 1631097), (27, 1147809), (39, 794637), (57, 543699), (81, 382603), (117, 264879), (171, 181233), (247, 125469), (351, 88293), (513, 60411), (741, 41823), (1053, 29431), (1539, 20137), (1549, 20007), (2223, 13941), (4647, 6669)]