12840849

素因数分解:

$3^5\times 7^1\times {\mathrm{7549}}^1$

素因数の和:7571

約数の個数: 24

約数和(自身を含む): 21985600

約数和(自身を除く): 9144751

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 7549, 22647, 52843, 67941, 158529, 203823, 475587, 611469, 1426761, 1834407, 4280283, 12840849]

約数ペア:

[(1, 12840849), (3, 4280283), (7, 1834407), (9, 1426761), (21, 611469), (27, 475587), (63, 203823), (81, 158529), (189, 67941), (243, 52843), (567, 22647), (1701, 7549)]